Answer:
Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?
An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?
If you have 30 white socks, 22 black socks, and 14 blue socks scattered across the floor in the dark, how many would you have to grab to get a matching pair?
What is the building that you leave without ever having entered.
A murderer is condemned to death. He has to choose between three rooms. The first is full of raging fires, the second is full of assassins with loaded guns, and the third is full of lions that haven't eaten in 3 years. Which room is safest for him?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.