Three birds—Pip, Chirp, and Feathers—are suspects in a worm heist. Pip says, 'Chirp is innocent.' Chirp says, 'Feathers is innocent.' Feathers says, 'I stole the worm.' If exactly one bird is telling the truth, who actually stole the worm?
Chirp
If Chirp stole the worm: Pip's statement is false, Chirp's statement ('Feathers is innocent') is true, and Feathers' statement ('I stole it') is false. That results in exactly one true statement. Any other thief produces two true statements.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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