When a date asks you a question, sometimes it is best to reply with a bit of a joke. Especially if you don't know what the expected response is and feel you could get yourself into trouble.
"Why, do you think they are more attractive than me?"
"Do I look fat?"
This answering technique can be especially useful if the question is double ended with no right answer.
This is an opportunity to perhaps get a laugh where otherwise you might get a cold look if you don't field the answer correctly.
Note that constantly using this technique will probably grow quite wearisome, so use it sparingly.