“I know”?

Score Points: 2Solvers: 8

There are three people standing in a queue so that the last person can see both people in front, the middle person can see one person in front, and the first person can't see anyone. Three hats, chosen out of three red and two blue hats, are placed one each on their head. The last person is asked the colour of hat on his head, and he says "I don't know". The middle person is asked the same and he also says "I don't know". Is it possible for the first person to answer “I know”? If yes, enter 0. If no, enter 1.

Correct Answer: 
0
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