Saturday, July 25, 2009

Shave and a Haircut Two Bits

Saw this on Yahoo today. I can't post there for some reason. So I'll post here instead.

From Yahoo!
Why is this a paradox? Can you solve it?
There is a village where the barber shaves all those and only those who do not shave themselves. Who shaves the barber?

The question at first seems paradoxical because of the information that is offered. Seemingly, the barber would need to shave and not shave himself. There are multiple answers to this question, and really when you think about it, it isn't much of a riddle because of that. The question doesn't say that there is only one barber in town, only that the barber shaves those who do not shave themselves. If there were two barbers in the village, each could shave the other. Of course, other solutions are much simpler: (1) The barber has a beard. (2) The barber is a woman. In either case, the barber does not need to shave.