“You are travelling down a country lane to a distant village. You reach a fork in the road and find a pair of identical twin sisters standing there.
One sister is standing on the road to village and the other standing on the road to never-land (of course, you don’t know or see where each road leads).
One of the sisters always tells the truth and the other always lies (of course, you don’t know who is lying).
Both sisters know where the roads go.
If you are allowed to ask only one question to each of the sisters to find the correct road to the village,
What will be your question?