Directory > Games > Puzzles > Brain Teasers > Mathematical TechInterview Answers to technical interview questions, programming problems, and brain teasers. http://www.techinterview.org/ Reviews Rating: Not yet Rated
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Leisure Ideas: Puzzles Some mathematical puzzles with answers and/or a hint. http://www.leisureideas.com/puzzles.htm Reviews Rating: Not yet Rated
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Flooble: Perplexus A forum and collection of brain teasers, logic problems, math problems, paradoxes, science games, probability, riddles, and geometric shapes. http://www.flooble.com/perplexus/ Reviews Rating: Not yet Rated
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The Pyramid Contains a collection of progressively more difficult problems. The more challenging problems require more than just mathematics to solve. http://www.netquiz.com.sg/pyramid/challenge.html Reviews Rating: Not yet Rated
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IBM Research: Ponder This Monthly logic and math puzzles set by IBM researchers with solutions. http://www.research.ibm.com/ponder/ Reviews Rating: Not yet Rated
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Dave's Logic Puzzles Monthly logic puzzles with solving grids. http://members.aol.com/dfcurran/logic/logicpuz.html Reviews Rating: Not yet Rated
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The Truth Tree's Math and Logic Board Collection of math and logic puzzles ranging in levels of difficulty. http://www.truthtree.com/mathdoor.html Reviews Rating: Not yet Rated
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Jim Loy's Puzzle Page Classic and original puzzles. http://www.jimloy.com/puzz/puzz.htm Reviews Rating: Not yet Rated
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