Logic question...?

Question:

Logic question...?

You are traveling in a country where every inhabitant is either a truthteller who always tells the truth
or a liar who always lies. You meet two of the inhabitants of this country, Sally and Jill. Sally says,
??At least one of us is a liar??. Is Sally a liar or a truthteller? What about Jill? Explain your answer.

Best Answer - Chosen by Asker: Sally is a truthteller because if she was a liar, she would be telling the truth in saying what she said which she cannot do if she was a liar so she is a truthteller which makes Jill the liar because Sally told the truth so Jill has to be a liar to make it the truth.... unless of course they don't ALWAYS lie or tell the truth, then you can't tell which they are.