I am older than my sister, but younger than my brother. My sister is twice as old as my dog, who was born 4 years ago. If my brother is 12, what are my possible whole-number ages?
9, 10, or 11
The dog is 4 years old. The sister is twice as old, so she is 8. The brother is 12. Your age must be strictly greater than 8 and strictly less than 12, leaving 9, 10, or 11 as the possible integer ages.
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: Easy. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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