Truth or Lie Riddle...?

KING

New member
You approach two talking doors. One door leads to the City of Truth, while the other door leads to the City of Liars. You do not know which door is which. You are able to ask only one question to determine which door is which. The door that leads to the City of Liars always speaks lies, while the door that leads to the City of Truth always speaks the truth. You want to go to the City of Truth. What question do you ask to determine which door leads to the City of Truth?
 
ask one door what the other one would say...ask "would he tell me that this door leads to the city of truth" his answer "yes" you now know that the other door leads to the city of truth.
if he was telling the truth, the other one would be lieing and vice versa
 
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