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Welcome to the PuzzleUp; a problem and games site where each week a different problem is put accross for you to think on and try to solve.
http://www.puzzleup.com/
created by puzzles on 2008-04-25 01:28:17
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Sharpen your pencils, pull out your calculators, and rev up your brain...
A challenging, puzzling, no-calculus, weekly contest problem to test your skills!
http://www.dansmath.com/probofwk/probofwk.html#
created by puzzles on 2008-04-25 00:00:52
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a) How many ways can 5! be written as a sum of (two or more)
consecutive positive integers? (s.c.p.i.)
b) Describe a procedure to count the number of ways that any
given natural number, m, can be expressed as the s.c.p.i.
c) Exactly how many ways can 74 factorial (74!) be written as
the sum of consecutive positive integers (s.c.p.i.)?
http://www.dansmath.com/probofwk/probofwk.html
created by puzzles on 2008-04-24 21:35:25
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Calendar Fractions
Write each date on a calendar as a fraction MM/DD. Every month has some fractions which are equivalent in other months. For example, January 2 (1/2) is equivalent to February 4 (2/4) and September 18 (9/18).
http://ken.duisenberg.com/potw/
created by puzzles on 2008-04-08 02:47:25
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Interactive Mathematics Miscellany and Puzzles
http://www.cut-the-knot.org/front.shtml
created by puzzles on 2008-04-08 02:30:36
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The math puzzles presented here are selected for the deceptive simplicity of their statement, or the elegance of their solution. They range over geometry, probability, number theory, algebra, calculus, trigonometry, and logic. All require a certain ingenuity, but usually only pre-college math. Some puzzles are original.
http://www.qbyte.org/puzzles/
created by puzzles on 2008-04-08 02:27:46
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A website dedicated to the puzzling world of mathematics
http://mathschallenge.net/index.php?section=latest
created by puzzles on 2008-04-08 02:26:53
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Classic puzzles:
* 123456789 = 100 NEW
* Archimedes' Cattle Problem NEW
* Number Magic
* Four Fours
* Eight Loaves of Bread
* The Fly and the Bicycles
http://www.jimloy.com/puzz/puzz.htm
created by puzzles on 2008-04-08 02:25:23
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* 12 Balls and a Balance Scale
* T-town, F-town
* Match Game
* Twice Nothing
* Let There Be Light
* Too Many Relatives
* Is Half a Hole Better than None?
* More is Less
* Silence is Golden
* 4 and 7 Makes 9
* A Classic Conundrum
* Send More Money
http://www.professortangent.org/teasers.shtml
created by puzzles on 2008-04-08 00:57:01
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f you want to test your brain and have fun, then you found the right place. You will crack some of my favorite brain teasers, all sorted into special categories.
http://brainden.com/puzzles-riddles.htm
created by puzzles on 2008-04-08 00:43:38
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