| Home :: Puzzles :: Mathematical |
Leisure Ideas: Puzzles Some mathematical puzzles with answers and/or a hint. http://www.leisureideas.com/puzzles.htm IBM Research: Ponder This Monthly logic and math puzzles set by IBM researchers with s olutions. http://www.research.ibm.com/ponder/ Jim Loy's Puzzle Page Classic and original puzzles. http://www.jimloy.com/puzz/puzz.htm The Truth Tree's Math and Logic Board Collection of math and logic puzzles ranging in levels of di fficulty. http://www.truthtree.com/mathdoor.html |
