Riddle: There was a blind man and a deaf mans friends they're. The blind man says to the deaf man what are we doing today? With no reply from the deafman the blindman gets mad and asks again what are we going to do today? The deafman replies shut up you stupid old man.
How was the deafman able to reply to the blindman?
Answer: The deafman can't hear but could see the blindmans lips moving and being the blindman is talking to a deafman he told the blindman he was stupid.