Just got this from a friend. trying to verify my answer. One day two students, Mr. P and Mr. Q are doing a test with Prof John. They know there are 16 cards in the drawer, Heart: A Q 4 Spade: J 8 4 2 7 3 Club: K Q 5 4 6 Diamond: A 5 Prof John drew one card from the group. He told Mr. P the face value of the card and told Mr. Q the suite of the card. Here is the conversation between them, Prof John: Do you know which card it is? Mr. P: I cannot tell which card it is. Mr. Q: I know you cannot tell. Mr. P: Based on what you just said, I know which card it is now. Mr. Q: Well, I also know which card it is now. What is the card and give your reasoning.
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