So many Questions, too few answers

Why is it that I have to ask my sons 10 questions to get 1 answer? Is it that they think I am prying? They should know me better. I ask "Where are you going?". They reply: "To a friends' house." I ask "Which friend?" They say "In Bandra". Is that a proper reply to the question? Should I not ask? I ask:Why not? Isn't that what families do? And yet when I'm dressed up and ready to go out, I get the same questions from them! I think I'm going to try and match their answers...any one out there in the same situation?