Finding the identity

In a certain remote African village, some people always speak true statement while some always utter falsehood. Now a person belonging to that village comes by. You are asked to identify the person whether he belongs to 'true' or 'false' group? How will you find it out?

Answer:

This puzzle may seem more harder than you imagine but it is really an easy one than you think. Just ask the question 'Whether it is raining now?'. If the person says 'yes' and if it is really raining now, you will know his identity. So also will you know if he says 'yes' and 'not raining'. Similar is the case with his saying 'no' when it is'raining' and also when 'not raining'. The puzzle is cracked because you are comparing the answer given by him, to the already known fact of it by you.