After blindfolding them, Paul picks up the five red discs, sticks one on the forehead of each logician, and hides the other discs elsewhere. After removing the blindfolds, everyone sees the discs (all red) on the others' foreheads but not the one on his own.

After a few minutes, one of the logicians (that reasons a little faster than the others) correctly states the color of his disc. How does he work it out?

Thanks. :)

I have a penchant for misreading/thinking of the question differently...but it's just easier to think of 5 guys sitting around with hats on their heads. Must be because most of these logic puzzles revolve around hats.

Nice puzzle :)

Posted by KC on 2005-09-09 06:26:18