Question 4
Two football teams, each with 10 players, play each other. One team consists entirely of truth-tellers and the other entirely of liars. Afterwards every player is asked, “How many goals did you score?” Some answer “one”, Châu answers “two”, some answer “three”, and the rest answer “five”. The truth-telling team wins 20–17. Is Châu telling the truth or lying? Explain your reasoning.
