Q: If a rooster lays an egg standing on a roof in the middle of the day, which way does it fall?
A: Roosters don’t lay eggs!
Context: The informant heard this riddle from her dad as a child, and speculates that all the extra context given in the riddle (i.e. the roof, the time of day, etc) is meant to throw off the listener from the obvious answer.
Analysis: This seems to fit into a trend of ‘catch’ riddles that a) casually introduce a key detail, b) distract the receiver with irrelevant information made to seem important, and c) ask a question that, unbeknownst to the receiver, depends solely on the key detail. The receiver is then meant to feel foolish for missing the obvious.