Five houses numbered 1 to 5 stand in a row from left to right. 1. House 1 is red. 2. The dog owner lives in house 2. 3. The owner of house 3 keeps a cat. 4. The green house is directly to the left of the white house. 5. The dog owner lives in the green house. 6. The bird owner lives in house 5. 7. The fish owner lives next door to the cat owner. In which house number does the fish owner live?
House 4
House 1 is red. House 2 has the dog and is green (since the dog owner lives in the green house). Since green is directly left of white, House 3 is white and contains the cat. The bird owner is in House 5. The fish owner must live next door to the cat owner (House 3), but House 2 already has the dog, so the fish owner must live in House 4.
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: Hard. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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