Half Fast Well, everyone raised their hand, so everyone sees at least one red dot. I'm guy A, the others are B and C. I think to myself, if I have a white dot, guy B would see a red dot (on C) and a white dot (on A, me), and since guy C raised his hand, B would know his dot is red because mine is white. Same with guy C looking at A (me) and B. If neither one can deduce this readily, I must have a red dot also.