The Ultimate Puzzle Site
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|van Gassel, Heijmans, van Veldhoven|
|A site in English and Dutch by three Dutch students. Contents include: Various Basic Puzzles and Riddles (no mathematics); Harder Puzzles and Riddles (no mathematics); Mathematical and Logic-deductional Puzzles with solutions; Brain-Teasers; and Complex Problems. The puzzles are marked with stars denoting degree of difficulty, and a list of all puzzles gives an overview from easy to hard. Math puzzles: Growing Water-Lily; Traveling Bird; Square And Rectangle; Jolly Jugs; Four Flies; Placing Bricks; Replacement Resistance; Cable Curve; The Bridge; Coin Weighing. Brain teasers: A Quiz (switch doors?); Troubled Traveler; Square Puzzle; 3 Heads & 5 Hats; Pirate Treasure; Bizarre Boxes.|
|Levels:||Elementary, Middle School (6-8), High School (9-12)|
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