# 4 Men In Hats Puzzle

The men in hats can only look forward, but they cant see through the brick wall. Above you will notice the wall between A & B. They are all aware that each of them is wearing a hat. Two are wearing black hats and 2 are wearing white hats, but each individual doesnâ€™t know what colour his own hat is. However they do all know where each of the men are buried.

In order to avoid being executed, one of them must call out to the executioner the color of their hat. If they get it wrong, everyone will be shot. They can’t talk to each other and have only 10 minutes to figure it out.

After 60 seconds, one of them calls out.

### QUESTION: Which one of them calls out? How can he be certain he knows the color of his hat?

This is not a silly trick question.

There’s no outside influence and no other way of communicating.

They can’t move and are buried in a straight line; A and B can only see their respective sides of the wall, C can see B, and D can see B and C.

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A bit further…..