Knights and knaves logic puzzles were made popular by the logician and mathematician Raymond Smullyan. See http://en.wikipedia.org/wiki/Knights_and_Knaves. Here we have a total of 382 puzzles which get progressively more difficult. They were generated by a computer program written by Zachary Ernst. There are no answers provided, but you can always check if your friends agree with you!

Puzzle #1 out of 382

A very special island is inhabited only by knights and knaves. Knights always tell the truth, and knaves always lie.

Can you determine who is a knight and who is a knave?

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