Answer:
How far can a man hike into the forest?
There are two sisters: one gives birth to the other and she, in turn, gives birth to the first. Who are the two sisters?
What always comes into a house through the keyhole?
How can you place a pencil on the floor so that no one can jump over it?
A town has only two barbers. One of the barbers has a nice, tidy haircut, and the other has a shaggy, messy haircut. Which barber should you go to?
Why was the cook arrested?