Rhetorical questions are ones where an answer is not expected. These questions are used to draw attention to something, often a negative situation where the answer is ‘no’ or there is no answer.
Have you lost your tongue? (Why don’t you say anything?)
Do you know what time it is? (You are late)
Who do you think you are? What do you think you are doing? (How dare you)
Where have you been all my life? (I wish I’d met you earlier)
How would you like to be in his position? (It’s a bad situation to be in)
Are you going to let them get away with that? (You shouldn’t let them do that)
Where am I going to find a bus at this time? (There aren’t any)