You are standing in front of two gates (a left one and a right one) – one leads to Heaven and the other leads to Hell. You don’t know which gate leads where. Beside the gates, there are two angels. One of them always tells the truth and the other always lies, but you don’t know which one is which.

You have one question to ask one of the angels, in order to find out which gate will lead you to Heaven. What would that question be?

Riddle Answer