Answer:
There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
How can you place a pencil on the floor so that no one can jump over it?
Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?
I moved in town but after every minute I would ask different people the same question but I got different answers... What was the question?
An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?