Topia!: Games: Puzzles: Brain Teasers: Mathematical (8) See Also: Science: Math: Recreations: Games and Puzzles Jim Loy's Puzzle Page - Classic and original puzzles. The Truth Tree's Math and Logic Board - Collection of math and logic puzzles ranging in levels of difficulty. Dave's Logic Puzzles - Monthly logic puzzles with solving grids. IBM Research: Ponder This - Monthly logic and math puzzles set by IBM researchers with solutions. The Pyramid - Contains a collection of progressively more difficult problems. The more challenging problems require more than just mathematics to solve. Flooble: Perplexus - A forum and collection of brain teasers, logic problems, math problems, paradoxes, science games, probability, riddles, and geometric shapes. Leisure Ideas: Puzzles - Some mathematical puzzles with answers and/or a hint. TechInterview - Answers to technical interview questions, programming problems, and brain teasers. Additional categories: automotive accessories msi motherboards greeting cards dog Masks

Mathematical