I highly doubt anyone will ever look at this topic again, but I am in Mensa and I create amazing riddles for my coworkers everyday. It's safe to say I take way too much pride in riddlery, haha.

You ask either one, "if I ask the other guy how to get home, what will he say?" The liar will tell you the wrong door, because he'd say the opposite of what the truth-teller would say. The truth-teller would also say the wrong door, because he knows the liar will lie. You'd only have to ask one of them one question, and you'd just have to know to go in the opposite door from the one they give you when asking them what the other would say.

Follow me on twitter and Instagram for riddles and other genius. @aaronmilner