A Knight, A Knave, And A Jester Walk Into A Castle
There are three friends. One of them is Knight (who always tells the truth), one is Knave (who always lies), and one is a Jester (who sometimes tells the truth and sometimes lies).
One day, everyone was asked "are you a Knight?" Exactly two of them replied "Yes," and the other said "No."
Did the Jester tell the truth or did he lie?