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MindBreakers - http://www.mindbreakers.com/
Since 1995 free puzzles, riddles, brain teasers, quizzes, and games. Fascinating riddles and multipart puzzles. |
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Riddle-Poems, and How to Make Them - http://www.catb.org/~esr/riddle-poems.html
The gentle and literate art of the rhyming riddle. |
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Amusements in Mathematics - http://www.thinks.com/puzzles/dudeney/dudeney.htm
Riddles by Henry Ernest Dudeney. |
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Puzzles by Sam Loyd - http://www.thinks.com/puzzles/loyd/loyd.htm
Ten puzzles from a collection that appeared in various newspapers and magazines over the previous fifty years. |
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BrainDen.com: Brain Teasers and Riddles - http://brainden.com/puzzles-riddles.htm
Classic puzzles and riddles sorted in several sections - general logic, weighing puzzles, Einstein's riddles, number sequences, and crossing river. |