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Basic Puzzles Sticks, Coins & More... Harder Riddles Mathematical Problems
Harder Math Problems Logical Puzzles Brain-Teasers Complex Problems
Brain Tests & Experiments Quizzes Funny Puzzles & Puzzle Jokes List
http://www.puzzle.dse.nl/index_us.html
created by puzzles on 2008-04-25 06:09:27
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Stan Wagon, a professor in the Mathematics and Computer Science Department at Macalester College, poses a mathematics problem to his students every week. The Problem of the Week tradition was started in 1968 by the late Professor Joe Konhauser. Professor Wagon took over in 1993. Since the problems are meant to be accessible to first-year college students, very little background is needed to understand or solve them.
http://mathforum.org/wagon/
created by puzzles on 2008-04-25 04:26:03
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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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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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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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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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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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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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Puzzle Types
* Easy Puzzles
View only the easy puzzles.
* Medium Puzzles
View puzzles which require a little more thinking.
* Hard Puzzles
View puzzles which are quite hard and may need a little time to work out.
http://www.brainbashers.com/puzzles.asp
created by puzzles on 2008-04-08 00:42:09
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