Prisoners and hats puzzles

Hey all.....Please try this puzzles.. It's fun!!!

4 prisoners are caught and are to be punished. The Judge allows them
to be freed if they can solve a puzzle.
If they do not, they will be hung. They agreed.

The 4 prisoners are lined up on some steps (shown above). They are
all facing in the same direction. A wall separates the fourth man
from the other three.

So to summarize:-
Man 1 can see men 2 and 3.
Man 2 can see man 3.
Man 3 can see none of the others.
Man 4 can see none of the others.

The prisoners are wearing hats. They are told that there are two white
hats and two black hats. The men initially don't know what colour
hat they are wearing. They are told to shout out the color of the hat
that they are wearing as soon as they know for certain what colour
it is.

They are not allowed to turn round or move.
They are not allowed to talk to each other.
They are not allowed to take their hats off. Who is the first person
to shout out and why?




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So what is your answer?????

Answer

Man 1 wears a black hat and he sees a white and black hat which means he could have a black OR white hat because there are 2 black hats & 2 white hats
Man 2 sees a black hat and this means he wears a black or white hat
the fact that man 1 didn't shout means Man 2 knows Man 1 saw 2 different colours so he shouts the opposite colour which is white.

Problem solved!