.
.
Subj:     Math4b - Supp
                 (Includes 47 jokes and articles, 17 1014n,23,cf,vYT3,10)

          Click "Here" for MATH4b-Supp2
 


3D Puzzle from
Pentomino Site
Includes the following:  Math Prob. - An Addition Problem (S588 in Supp2)
.........................Math Prob. - Archery Puzzle (S588 in Supp2)
.........................Math Prob. - Trading In The Philippines (S587 in Supp2)
.........................Math Prob. - Socks In A Drawer (S586 in Supp2)
.........................Math Prob. - Problems of History (S585 in Supp2)
.........................Math Prob. - Walking From The Train Station (S583 in Supp2)
.........................Math Prob. - Four Digit Number #2 (S579b in Supp2)
.........................Math Prob. - Brothers And Sisters (S577b in Supp2)
.........................Math Prob. - Find Two Numbers (S573 in Supp2)
.........................Math Prob. - 100 Men (S570 in Supp2)
.........................Math Prob. - Cat Equation (S564a in Supp2)
.........................Math Prob. - Odd-One-Out (S556 in Supp2)
.........................Math Prob. - Four Digit Number (S553c in Supp2)
.........................MATH PROB. - A Length Of Rope (S547c in Supp2)
.........................MATH PROB. - Find Three Digits (S541c in Supp2)
.........................MATH PROB. - Two Hourglasses And An Egg (S538c in Supp2)
.........................Math Prob. - Average Speed (S537 in Supp2)
.........................Math Prob. - Cookies And Milk (S537 in Supp2)
.........................Math Prob. - The Groom's Age (S534 in Supp2)
.........................Math Prob. - Numbers On A Dice (S534c in Supp2)
.........................Math Prob. - What Is The Next Number? (S533c in Supp2)
.........................Math Prob. - Five Digit Number (S532c in Supp2)
.........................
.........................MATH PROB. - Semicircle In A Triangle (S492)
.........................MATH PROB. - Meat Purchase (S490)
.........................Math Prob. - Three Women's Ages (S531c)
.........................Math Prob. - Crab Weights (S528)
.........................Math Prob. - Three Sister's Ages (S523c)
.........................Math Prob. - Maria's Age (S521c)
.........................Math Prob. - Two Clocks (S519)
.........................Math Prob. - Old Man Wrinkle's Age (S517)
.........................Math Prob. - Marriage Knot (S516)
.........................Math Prob. - Three Beggars (S516c)
.........................MATH PROB. - Four Balls In A Hat (S514c)
.........................MATH PROB. - Fruit Stand Weights (S512c)
.........................MATH PROB. - Cost of War (S511)
.........................MATH PROB. - Karen's Age (S507)
.........................MATH PROB. - What Is The Next Number (S507c)
.........................MATH PROB. - A String Of Ones (S503)
.........................MATH PROB. - Word Arithmetic (S498)
.........................MATH PROB. - Eve Did Talk (S496c)
.........................MATH PROB. - What Number Comes Next? (S495c, S638)
.........................MATH PROB. - The Father's Will (S495)
.........................MATH PROB. - Find The Ants Shortest Route (S495c)
.........................MATH PROB. - 123456789 = 100 (S494)
.........................MATH PROB. - Number Riddle (S493c)
.........................
.........................LOGIC PROB. - Pink, White, And Blue (S582 in Supp2)
.........................LOGIC PROB. - Figure Analogy (S580 in Supp2)
.........................LOGIC PROB. - Cube In Perspective (S580 in Supp2)
.........................LOGIC PROB. - Which Figure Does Not Belong (S577 in Supp2)
.........................LOGIC PROB. - Missing Numbers (S561 in Supp2)
.........................LOGIC PROB. - Three Names (S559 in Supp2)
.........................LOGIC PROB. - The Right Cube (S548c in Supp2)
.........................LOGIC PROB. - Three Playing Cards (S544 in Supp2)
.........................LOGIC PROB. - 15 Delegates (S541 in Supp2)
.........................LOGIC PROB. - Which Diagram Is Different #2 (S538 in Supp2)
.........................LOGIC PROB. - What Is Next In The Sequence (S536 in Supp2)
.........................LOGIC PROB. - Two Towns And A Railroad (S536c in Supp2)
.........................LOGIC PROB. - Liars And Truthtellers (S535c in Supp2)
.........................LOGIC PROB. - Which Diagram Is Different (S535 in Supp2)
.........................
.........................LOGIC PROB. - Is this true? (S531)
.........................LOGIC PROB. - Frog Leap (S530c)
.........................LOGIC PROB. - Frog Leap II (S624b)
.........................LOGIC PROB. - Complete The Analogy (S530)
.........................LOGIC PROB. - Four-Digit Number (S515c)
.........................LOGIC PROB. - Crossing Time (S506)
.........................LOGIC PROB. - How Many Circles? (S506c)
.........................LOGIC PROB. - Consecutive Elements (S505c)
.........................LOGIC PROB. - HAT's Off (S498c)
.........................LOGIC PROB. - Figure Logic 1 (S496)
.........................LOGIC PROB. - Figure Logic 2 (S497c)
.........................
.........................Puzzle - Puzzling Scales By Sam Loyd (S585 in Supp2)
.........................Puzzle - Count The Squares (S578 in Supp2)
.........................Puzzle - Three Utilities (S578 in Supp2)
.........................Puzzle - Missing Number (S576 in Supp2)
.........................Puzzle - Making Bracelets (S558 in Supp2)
.........................Puzzle - Count The Triangles II (S545c in Supp2)
.........................Puzzle - Distributing A Man's Legacy (S533 in Supp2)
.........................
.........................Puzzle - Remembering Pi (S532 in Supp2)
.........................Puzzle - Count The Triangles (S525)
.........................Puzzle - 5 By 5 Magic Square (S526c)
.........................Puzzle - Two Ropes (S525)
.........................Puzzle - How Many Squares (S524c)
.........................Puzzle - The Elder Twin (S515)
.........................Puzzle - Artist's Puzzle (S511c)
.........................Puzzle - Coal, Carrot, And A Scarf (S509c)
.........................Puzzle - Rotating Coin Paradox (S504)
.........................Puzzle - Map Coloring (S502c)
.........................Puzzle - Square Puzzle (S500)
.........................Puzzle - Draw Four Lines (S500c)
.........................Puzzle - Five Queens And Three Pawns (S497)
.........................Puzzle - Magic Gopher (S492)

============================================================Top
Subj:     MATH PROB. - Semicircle In A Triangle (S492)
          From: Nick's Mathematical Puzzles on 2/24/2006
 Source: http://www.qbyte.org/puzzles/puzzle15.html

 In ABC, side AB = 20, AC = 11, and BC = 13.  Find the diameter
 of the semicircle inscribed in ABC, whose diameter lies on AB,
 and that is tangent to AC and BC.
.
.................
.
 The solution can be found at the source above.

Top
Subj:     MATH PROB. - Meat Purchase (S490)
          From: Exidor's Logic Puzzle Place on 6/11/2006
 Source: http://www.thakur.demon.nl/index_1.html

 A butcher goes to the market with $100 cash.  He has to buy
 exactly 100 animals.  There are cows, geese and chicken for
 sale. A cow costs $15, a goose is $1 and a chicken costs
 $0.25.  He has to buy at least one of each animal and has
 to spend all his money.

 What does the butcher buy?

Top
Subj:     Math Prob. - Three Women's Ages (S531c)
          From: Puzzles And Brain Teasers on 3/19/07
 Source: http://people.virginia.edu/~rhp/Riddles/riddle4.htm

 THIS WEEKS CONTEST TEASER "Puzzle #22"

 Joan and Jane are sisters. Jean is Joan's daughter and 12
 years younger than her aunt.  Joan is twice as old as Jean.
 Four years ago, Joan was the same age as Jane is now, and
 Jane was twice as old as her niece.  How old is Jean?

 The solution can be found at the source above.

Top
Subj:     Math Prob. - Crab Weights (S528)
          From: Puzzles And Brain Teasers on 3/1/07
 Source: http://towyncoyote.livejournal.com/95595.html

 If a crab and a half weigh a pound and a half, but the half
 crab weighs half as much again as the whole crab, what do
 half the whole crab and the whole of the half crab weigh?

 The solution can be found at the source above.

Top
Subj:     Math Prob. - Three Sister's Ages (S523c)
          From: Puzzles And Brain Teasers on 1/18/07
 Source: http://www.justriddlesandmore.com/Brainbusters/BB34.html

 Of three sisters named April, May, and June, none is yet
 twenty-one.  April is now as old as June was fourteen years
 ago and two-thirds of May's age.  May, on the other hand,
 will be June's age when May is twice as old as she is now
 plus two years.  Three years ago, May was as old as April
 is now. How old are April, May, and June?

 The solution can be found at the source above.

Top
Subj:     Math Prob. - Maria's Age (S521c)
          From: Puzzles And Brain Teasers on 1/11/07
 Source: https://in.answers.yahoo.com/question/
.........index?qid=20100601032752AAkoM9P

 When Maria went to get a passport, she had to give her real
 date of birth, but under all other circumstances she refused.
 When somebody asked how old she was, she said she was twenty-
 one.  Mentally omitting all Sundays.  Sundays she didn't work,
 so naturally she didn't get any older.  How old was Maria really?

 The solution can be found at the source above.

Top
Subj:     Math Prob. - Two Clocks (S519)
          From: Puzzles And Brain Teasers on 1/2/07
 Source: http://www.justriddlesandmore.com/Brainbusters/BB73.html

 Two clocks register midnight at exactly the same time.  One
 clock loses a minute an hour while the other clock gains a
 minute a hour.  When will they again tell the same time?

 The solution can be found at the source above.

Top
Subj:     Math Prob. - Old Man Wrinkle's Age (S517)
          From: Puzzles And Brain Teasers on 12/9/06
Old man from Puzzles and Brain Teasers
 Source: http://www.syvum.com/cgi/online/serve.cgi/teasers/wrinkle1.tdf?0

 Man Wrinkle spent one-fourth of his life as a boy, one-eighth
 as a youth, and one-half as an active man.  If Man Wrinkle
 spent 10 years as an old man, then how many years did he spend
 as an active man?

Top
Subj:     Math Prob. - Marriage Knot (S516)
          From: The Puzzle Page on 12/6/06
 Source: http://puzzlepage.blogspot.com/2010/05/
.........when-first-marriage-knot-was-tyd.html

 When First the Marriage Knot was Ty'd
          by Erik Oosterwal

 This little puzzle comes from a book honoring the great puzzle
 master Martin Gardner.  In the chapter titled Some Diophantine
 Recreations, David Singmaster presents the following poem which
 appeared in The American Tutor's Assistant, in 1791.

 When first the marriage knot was ty'd
 Between my wife and me,
 My age was to that of my bride
 As three times three to three
 But now when ten and half ten years,
 We man and wife have been,
 Her age to mine exactly bears,
 As eight is to sixteen;
 Now tell, I pray, from what I've said,

 What were our ages when we wed?

Top
Subj:     Math Prob. - Three Beggars (S516c)
          From: The Puzzle Page on 12/6/06
 Source: http://puzzlepage.blogspot.com/2008/03/three-beggars.html

 A charitable lady met a poor man to whom she gave one cent
 more than half of what she had in her purse.  The poor
 fellow, who was a member of the United Mendicants'
 Association, managed, while tendering his thanks, to chalk
 the organization's sign of "a good thing" to her clothing.
 As a result, she met many objects of charity as she proceeded
 on her journey.

 To the second applicant she gave 2 cents more than half of
 what she had left.  To the third beggar she gave three cents
 more than half of the remainder.  She now had one penny left.

 How much money did she start out with?

Top
Subj:     Math Prob. - Four Balls In A Hat (S514c)
          From: Daily Brain Teasers on 11/22/2006
 Source: http://dailybrainteaser.blogspot.com/
.........2011/10/paradox-probability-puzzle.html

 This is a famous paradox which has caused a great deal of
 argument and disbelief from many who cannot accept the correct
 answer.  Four balls are placed in a hat.  One is white, one is
 blue and the other two are red.  The hat is shaken and someone
 draws two balls from the hat. He looks at the two balls and
 announces that at least one of them is red.  What are the
 chances that the other ball he has drawn out is also red?

 The amazing solution can be found at the source above.

Top
Subj:     Math Prob. - Fruit Stand Weights (S512c)
          From: Daily Brain Teasers on 11/9/2006
 Source: http://mathforum.org/library/drmath/view/53094.html

 A boy selling fruit has only three weights, but with them
 he can weigh any whole number of pounds from 1 lb. to 13 lb.
 inclusive.  What weights does he have?

Top
Subj:     Math Prob. - Cost of War (S511)
          From: Lamohlavy - BrainTeasers on 11/2/2006
 Source: http://brainden.com/forum/topic/14-cost-of-war/

 Here's a variation on a famous puzzle by Lewis Carroll,
 who wrote Alice's Adventures in Wonderland.  A group of
 100 soldiers suffered the following injuries in a battle:
 70 soldiers lost an eye, 75 lost an ear, 85 lost a leg,
 and 80 lost an arm.  What is the minimum number of soldiers
 who must have lost all 4?

Top
Subj:     MATH PROB. - Karen's Age (S507)
          From: CoolMath.com on 10/13/2006
 Source: http://puzzlepage.blogspot.com/2008_03_01_archive.html
 

          Nine years ago, Karen was in her prime.

          Eight years ago, She was a power of a prime.

          And last year, Karen was really odd.

          How old is Karen now?
 

Top
Subj:     MATH PROB. - What Is The Next Number? (S507c)
          From: tromeo on 10/6/2006
 Source: (Removed from apuzzlezone.com)

 What is the next number in this series:
 1248 1632 6412 8256 ????

 To see the solution click 'HERE'.

Top
Subj:     MATH PROB. - A String Of Ones (S503)
         From: MathsChallenge.net on 9/13/2006
 Source: http://mathschallenge.net/index.php?
.........section=problems?show=true?titleid=string_of_ones

 A number consisting entirely of the digit one is called
 a repunit; for example, 11111.

 Find the smallest repunit that is divisible by 63.
 

 To see Abe's solution click 'HERE'.

Top
Subj:     MATH PROB. - Word Arithmetic (S498)
..........© Copyright 2000, Jim Loy
 Source: (Removed from jimloy.com)

 The name "word arithmetic" is used in Dell puzzle magazines.
 It is a form of "cryptarithm."  A word arithmetic is a long
 division problem, with letters in place of the actual numbers.
 Each letter stands for a different digit.  When you are done,
 the letters, when listed in numeric order, spell out a coherent
 word or phrase.

 Here is a typical Word Arithmetic problem (except that you
 don't see any familiar words in it):

         ABC
       -----
    DE)AFCGH
        DE
       ---
        IDG
        ICD
       ---
         FJH
         FGA
         ---
          JB

 To see the solution, go to the source above.

Top
Subj:     MATH PROB. - Eve Did Talk (S496c)
          © Copyright 2000, Jim Loy
 Source: http://able2know.org/topic/16663-113

 This problem comes from the excellent book, Self-Working
 Number Magic by Karl Fulves.  Every letter stands for a
 different digit.  Can you figure the original equation?

 EVE/DID=.TALKTALKTALKTALKTALKTALK...

 To see the solution, go to the source above.

Top
Subj:     MATH PROB. - What Number Comes Next? (S495c, S638)
          From: LABLaughsRiddles on 7/20/2006 and 3/3/2009

 What number comes next?  1 4 7 11 15 19 ?
 

x
x
x
x
x
Scroll down for the answer
x
x
x
x
x
Here it comes
x
x
x
x
x

It's 17 because Seventeen has 9 letters.
One is the first number with 3 letters.
Four is the first number with 4 letters.
Seven is the first number with 5 letters.
Eleven is the first number with 6 letters.
Fifteen is the first number with 7 letters.
ninteen is the first number with 8 letters.

Top
Subj:     MATH PROB. - The Father's Will (S495)
          © Copyright 2003, Jim Loy
 Source: http://brainden.com/forum/topic/13312--/

 There is a well-known story (the details vary) of a father
 who, when he died left his seven camels to his three sons
 in the following way: The eldest son was to receive one
 half of the camels, the middle son was to receive one fourth,
 and the youngest was to receive one eighth.  This will
 disturbed the sons greatly, because it seemed to necessitate
 cutting some of the camels into pieces.  The family's wise
 neighbor volunteered to solve the problem for them.  He added
 one of his own camels to the herd, bringing the number up to
 eight.  Then the eldest son received four, the middle son
 received two, and the youngest son received one camel.  The
 wise neighbor then took back his camel, and everyone was
 happy. Kinda amazing, huh? Was this solution fair?

 To see the solution, go to the source above.

Top
Subj:     MATH PROB. - Find The Ants Shortest Route (S495c)
          From: Maths Medicine on 7/19/2006
 Source: http://www.mathsmed.co.uk/
.
..........
.
Top
Subj:     MATH PROB. - 123456789 = 100 (S494)
          © Copyright 2003, Jim Loy
 Source: http://www.riddlers.org/riddles/30

 Puzzle: Make the numbers 123456789 add up to 100, by
 inserting any of these arithmetic operations (+ - * /)
 into the string of numbers (and keeping the numbers in
 the above order).

 To see 101 solutions, go to the source above.

Top
Subj:     MATH PROB. - Number Riddle (S493c)
          From: LABLaughsRiddles on 7/9/2006

 Double my number, I'm less than a score, half of my number
 is less than four. Add one to my double when bakers are near,
 days of the week are still greater, I fear. What am I?
 

x
x
x
x
x
Scroll down for the answer
x
x
x
x
x
Here it comes
x
x
x
x
x

The number 6

Top
Subj:     LOGIC PROBLEM - Is this true? (S531)
          From: Puzzles And Brain Teasers on 3/17/07
 Source: http://www.justriddlesandmore.com/Brainbusters/BB71.html

 Five times four twenty, plus two, equals twenty-three.
 Is this true?

 The solution can be found at the source above.

Top
Subj:     LOGIC PROBLEM - Frog Leap (S530c)
          From: drgolfmd on 3/15/2007

 This very cute logic puzzle is embedded in a Microsoft
 XLS Spreadsheet.  You can play it by clicking 'HERE'.
 This will download an XLS file to your computer.

Top
Subj:     LOGIC PROBLEM - Frog Leap II (S624b)
          From: gordonschuk on 12/21/2008
 Source: (Removed from funstufftosee.com)

 In this cute logic puzzle, move the three brown
 frogs to the left three rocks, and the three green
 frogs to the right three rocks.  You can play this
 SWF game by clicking 'HERE'.

Top
Subj:     LOGIC PROBLEM - Complete The Analogy (S530)
          From: Puzzles And Brain Teasers on 3/12/07
 Source: (Removed from apuzzlezone.com)

 This Weeks Contest Teaser is "Puzzle #21"
.
.........
.
 I'm sorry there is not solution listed here.

Top
Subj:     LOGIC PROB. - Four-Digit Number (S515c)
..........From: QuickLogicPuzzles.com on 11/30/06
 Source: http://www.robertwilliams.org/qlp/index.html

 Four guesses of a four-digit number are given.
.
..........
.
 What is the right fifth guess?  H stands for a hit and
 M stands for a misplaced number.

Top
Subj:     LOGIC PROB. - Crossing Time (S506)
          From: LeisureIdeas on 9/30/2006
 Source: http://www.eat-a-garden.info/fun%20things%20to%20do/fun
.........%20things%20to%20do%20at%20home/puzzles/logic%20puzzles.htm

 A man leaves his home at 2:00 p.m. Friday to begin a hike
 up a mountain.  That night he sleeps at the top of the
 mountain and at 2:00 p.m.  Saturday begins his journey
 down the mountain to his home.  On both legs of the trip
 he occasionly stops to look at the view or to rest and
 pays little attention to the time.  He follows the same
 trail on both days.  Is it likely that sometime Saturday
 he would be at the same place on the trail at the same
 time of day as he was on Friday?

 The solution can be found at the source above.

Top
Subj:     LOGIC PROB. - How Many Circles? (S506c)
          From: LeisureIdeas on 9/30/2006
 Source: http://www.eat-a-garden.info/fun%20things%20to%20do/fun
.........%20things%20to%20do%20at%20home/puzzles/logic%20puzzles.htm

 There are 5 dots drawn randomly on a sheet of paper.
 How many circles can be drawn so that each circle
 passes through three dots?

 The solution can be found at the source above.

Top
Subj:     LOGIC PROB. - Consecutive Elements (S505c)
          The Ultimate Puzzle Site on 9/23/2006
 Source: (Removed from puzzle.dse.nl)

.
The following four objects have 
something in common:
.
One of these three objects is the
next element in the row. 
.
  The Question: Which one is the next element?
.
Click 'HERE' for the solution.

Top
Subj:     LOGIC PROB. - HAT's Off (S498c)
          From: Steve Miller's Math Riddle Pages on 8/9/2006
 Source: http://mathriddles.williams.edu/?p=64

 Three mathematicians are applying for a job.  There are 5
 hats, 3 white, 2 black. They're lined up, and a hat is
 placed on each.  The first person in line cannot see any
 hat; the second in line sees only the hat of the person
 in front of him; the third person sees only the hats of
 the two people in front of her.  The first person to
 correctly figure out what color hat they have gets the
 job; you guess wrong and you are killed. Assume these
 are INTELLIGENT  mathematicians, and that they will do
 the logically correct thing  at each stage -- if something
 can be deduced, they will.  After a  long pause, the first
 person, who cannot see any hats, says he knows  the color
 of his hat. What is the color, and how does he know?

Top
Subj:     LOGIC PROB. - Figure Logic 1 (S496)
          © Copyright 2000, Jim Loy
 Source: (Removed from jimloy.com)

 Figure Logic looks much like a crossword puzzle.  And
 solving it is much like solving a crossword puzzle.
 There are numbered clues, and you can deduce inter-
 relationships between the numbers.  When solved, each
 little square will contain a one digit number.  None
 of the multiple digit numbers (like 1-across) begins
 with a zero.  The same digit may occur more than once
 in a multiple digit number.  You can solve by clicking
 'HERE'.

Top
Subj:     LOGIC PROB. - Figure Logic 2 (S497c)
          © Copyright 2000, Jim Loy
 Source: (Removed from jimloy.com)

 Here is another figure logic designed by Jim Loy.  You
 can solve it by clicking 'HERE'.

Top
Subj:     Puzzle - Count The Triangles (S525)
          From: Daily Brain Teasers/Puzzles on 1/31/07
 Source: (Removed from apuzzlezone.com)

 THIS WEEKS CONTEST TEASER "Puzzle #18"

 How many triangles of any size are in this figure?
.
.........
 I'm sorry there is not solution listed here.

Top
Subj:     Puzzle - 5 By 5 Magic Square (S526c)
          From: Daily Brain Teasers/Puzzles on 1/31/07
 Source: http://www.mathematische-basteleien.de/magsquare.htm

 Each row of numbers has a common total, each column of
 numbers has the same common total, and the numbers in each
 of the two diagonals have the same total. We called this a
 "magic square."

      816
      357
      492

 Now, can you arrange the numbers 1 to 25 so as to form a
 magic square?  This square will have five numbers in each
 row, column, and diagonal.  And the numbers in each of
 these will add up to the same total.

 The solution can be found at the source above.

Top
Subj:     Puzzle - Two Ropes (S525)
          From: Daily Brain Teasers/Puzzles on 1/31/07
 Source: http://rs.io/the-science-of-problem-solving/

 In a room you find nothing but two ropes hanging from the
 ceiling and a pair of pliers.  You are to bring the lower
 ends of the ropes together and tie them in a knot.  If you
 grab one rope and pull it towards the other as far as you
 can, your outstretched arm still falls shy a foot of the
 other rope.  And should you hold the pliers in the free
 hand you still cannot quite reach the other rope.  The ropes
 cannot be unraveled, but this problem can be. Do so.

 The solution can be found at the source above.

Top
Subj:     Puzzle - How Many Squares (S524c)
..........From: Daily Brain Teasers/Puzzles on 1/29/07
 Source: (Removed from apuzzlezone.com)

 Weekly Brain Teaser "Puzzle #15"
 How many squares of any size are in the figure?
.
........
.
 I'm sorry there is not solution listed here.

Top
Subj:     Puzzle - The Elder Twin (S515)
          From: Lamohlavy on 11/30/06
 Source: http://brainden.com/crossing-river.htm

 One day Kerry celebrated her birthday.  Two days later her
 older twin brother, Terry, celebrated his birthday.  How Come?

 This puzzle was submitted to Games Magazine's 'How Come'
 competition in 1992 by Judy Dean.  It won.

Top
Subj:     Puzzle - Artist's Puzzle (S511c)
          From: BrainJuice on 11/2/2006
 Source: http://www.braingle.com/brain
Sketch from Art of the State
.........teasers/20526/two-and-a-half.html

 Two and a half artists spend two and a half hours painting
 two and a half models on two and a half canvases.  How many
 artists are necessary to paint twenty-four models on twenty-
 four canvases in twenty hours?

Top
Subj:     Puzzle - Coal, Carrot, And A Scarf (S509c)
          From: Analytical Problems and Puzzles on 10/23/2006
 Source: http://www.folj.com/lateral/fanciful.htm

 Five pieces of coal, a carrot and a scarf are lying on a
 hill near a remote house.  Nobody put them on the lawn
 but there is a perfectly logical reason why they should
 be there.  What is it?

Top
Subj:     Puzzle - Rotating Coin Paradox (S504)
          From: curiouser.co.uk on 9/18/2006
 Source: http://www.curiouser.co.uk/puzzles/coin.htm

 Consider two round coins of equal size.  Imagine holding
 one still so that it does not move and then rolling the
 other coin around it, making sure that it does not slip.
 The rims are kept touching at all times.  How many times
 will the moving coin have rotated after it has completed
 one revolution of the stationary coin?

 Don't try it until you have thought about it.  You may be
 surprised.  The solution can be found at the source above.

Top
Subj:     Puzzle - Map Coloring (S502c)
          From: The Handley Math Page on 9/5/2006
..........At: (Removed from pen.k12.va.us)

 All maps can be colored with at most four colors.  Try to
 color these four pictures with no more than four colors
 by clicking 'HERE'.

Top
Subj:     Puzzle - Square Puzzle (S500)
          From: Ultimate Puzzle Site on 8/15/06
 Source: (Removed from puzzle.dse.nl)

 To see this puzzle click 'HERE'.  Print the picture,
 and cut the pieces out. The five pieces shown must
 be put together to a square.

Top
Subj:     Puzzle - Draw Four Lines (S500c)
          From: Free Puzzles on 8/15/2006
Source: (Removed from freepuzzles.com)
 
 
Within the rectangle, draw a
line to connect from circle 1
to the other circle 1, then
draw a line from circle 2 to
the other circle 2, and so on.
There should not be any inter-
sections. All the lines cannot
go out of the rectangle.

Top
Subj:     Puzzle -  Five Queens And Three Pawns (S497)
          From: Steve Miller's Math Riddle Pages on 7/31/2006
 Source: http://forums.soompi.com/en/topic/
.........137851-chess-riddle-whos-good-at-logic/

 Consider a 5 by 5 Chess Board. Is it possible to place
 5 Queens on the board such that three pawns can safely
 be placed on the board? (aka, by carefully choosing where
 to place the 5 queens, can you arrange it so that there
 are 3 squares on the board that none of the queens can
 attack)

Top
Subj:     Puzzle - Magic Gopher (S492)
          From: darrell94590 on 7/5/2006
 Source: (Removed from learnenglish.org.uk)
.(Also see 'Crystal Ball' in Math4-Supp
.......and 'Regifting Robin' in Christmas-Supp)

 This is a cute mind reading math puzzle.  You can play it
 by clicking 'HERE'.

                            \\\//
                           -(o o)-
========================oOO==(_)==OOo======================
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..........................From Imogenelumen on 8/8/04
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