Here’s a fun riddle I remembered from years ago (thanks to cut-the-knot.org for help with the proper wording):
A man was looking at a portrait. Someone asked him, “Whose picture are you looking at?”
He replied: “Brothers and sisters I have none, but this man’s father is my father’s son.”
Whose picture was the man looking at?
I’ll post the answer below in a day or two.
Update: please see the comments below for clue & answer.
Clue: If you break the puzzle up into chunks, “this man’s father is X”, try to figure out first what X would be.
(where X equals “my father’s son”
Answer:
Whose picture was the man looking at?
That of his son.
Brothers and sisters I have none, but this man’s father is my father’s son.
Whose picture is the man looking at?
True, it could be a picture painted by his son, but it could also be a picture painted by his nephew.
The man said “Brothers and sisters I have none….” but he may have ONE brother, and not brothers.
I thought at first he was looking at his picture but I forgot he said ‘this man’s father’.