If two people are of the same type,then they are either both knights or both liars.
If they are of different types,then one is a knight and one is a liar.
Now, suppose Drew and Mohammad say the following.
Drew: We are of the same type.
Mohammad: We are of different types.
Now, what are each?
(In reply to
re: This is Cheating by Bryan)
Bryan I am sorry if I have been talking about voting, but actually I meant Rating of this problem. Someone has rated this problem 5 even before a single comment had been posted for this problem. That is what I was trying to say and not what comments it received when it was in the queue.