Sunday, September 5, 2010

Can you solve this????

Below is a small puzzle I came across. Check if you can solve this.. 

4 criminals 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.....

4 criminals are lined up on some steps (shown in picture). 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 criminals are wearing hats. They are told that there are two white hats and two black hats. The men don't know what color 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 color 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??

Comment if you can find the answer.... :O


1 comment:

Mark said...

The answer is criminal man # 2. The reason is because he (#2) can see the color of #3's hat, and because all men know that there are two colors of each hat. Man # 1 remained silent, so man # 2 deduced that because of man #1's silence, then he (man#2) must be wearing a hat the opposite color of #3. Had #2's hat been the same color as #3 then #1 would have spoken first.