A man looks at a portrait on the wall and says, 'Brothers and sisters I have none, but that man's father is my father's son.' Who is in the portrait?
The man's son
Since the speaker has no brothers or sisters, 'my father's son' refers to the speaker himself. Substituting that back into the statement gives: 'that man's father is ME.' Therefore, the portrait is of his son.
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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