The guy at the back and the guy in the middle will know their hat is black only if they see the white hat in front of them.

 

If the guy at the back sees two black hats, he has the white hat.

 

If the guy in the middle sees a black hat, and does not hear the guy at the back shout after a reasonable period of time, he has the white hat.

 

If the guy at the front hears nothing for a while, he assumes he has the white hat and the others are waiting for him.

Damn! LOL

That puzzle relies on people assuming that silence cannot be a form of communication.

 

`nuff said

Going back, how's this? The following night 2 men check back in for 15 dollars each. the same situation happens and the bellhop thinks "well, they can't divide 5 dollars between 2 people, so he keeps 3. The men each get a dollar back, so they paid 14 dollars each. 14x2=28+3=31. that's your extra dollar!!!>)

ok, heres a stumper

10 fish I caught without an eye, 9 without a tail, 6 had no head, and half of 8 I weighed upon the scale, not who can tell me as I ask it how many fish are in my basket?

Give number, and include your reasoning

you never said how tall the tunnle was..... sohe could have just turned around and walked back.... im prolly not right but it was worth a shot...

it is either 31 mutilated fish or just 10 as you stated in the begining..