There are two kinds of people live in the country of King Arthur: those who always say the truth and those who always lie. One day the king ordered that all the liars must be put in jail. A woman, whose husband was put in jail, went to see the king and said to him: "My husband is a truthful man, and he always says that about himself, too. So, please, let him be free." What should the king decide based on these?

Question

The woman is a liar