Question: Your in a room with two doors, and in front of each door there is a guard, one guard ALWAYS lies and the other guard ALWAYS tells the truth, and one door leads you to happiness, the other door leads to sudden death, you may ask ONE guard ONE question and one question only, what do you ask to survive???
Answer: "If you were the other guard which door would you tell me to go through to lead me to hapiness?" BUT go through the opposite door instead of the one he tells you!!