There is a mute who wants to buy a toothbrush. By imitating the action
of brushing one's teeth, he successfully expresses himself to the
shopkeeper and the purchase is done.
Now if there is a blind man who wishes to buy a pair of sunglasses, how
should he express himself?
He opens his mouth and says. "I would like to buy a pair of sunglasses."
If you got this wrong then you should be shot or something because i even got it