You are traveling down a street and come to a fork in the road. Two guys are standing there, and one of them will always tell you a lie, and one of them will always tell you the truth.
Unfortunately, you don’t know which guy is which, and only one of the two roads leads to the town you need to get to.
Assuming both guys know which road leads to the town, what one question can you ask to find out which path to take?
As always, will try to unmask answers in a day or 2…