A blind man has to take exactly one green pill and one blue pill each day – no more and no less. However one day he accidentally takes out two pills from the green bottle and two pills from the blue bottle, and gets them all mixed up.
Is there any way the blind man can figure out how to take one green pill and one blue pill with what he has, or does he just have to throw away these pills and get new ones?
The blind man can take half of each of the four pills. Since there are two green pills and two blue pills, this would result in him taking two halves of a green pill and two halves of a blue pill.