Three neighbors—Bob, Alice, and Carol—live side-by-side in three houses in that exact order from left to right. One owns a cat, one a dog, and one a parrot. The cat owner lives immediately to the left of the parrot owner. The dog owner lives on an end house. Who owns which pet?
Bob owns the cat, Alice owns the parrot, and Carol owns the dog.
The cat owner is immediately to the left of the parrot owner, meaning [Cat, Parrot] must be adjacent neighbors in that order. Since Bob is on the far left, Alice in the middle, and Carol on the far right, the [Cat, Parrot] pair must occupy either [Bob, Alice] or [Alice, Carol]. The dog owner must take the remaining end house. If Bob were the dog owner, then [Cat, Parrot] would have to be [Alice, Carol], making Carol the parrot owner—which leaves the cat owner (Alice) not to the left of anyone. But if Carol is the dog owner (far right end), then Bob (far left) is the cat owner and Alice (middle) is the parrot owner, perfectly satisfying all conditions.
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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