2 questions that drives a girl naught!

Sometimes I wonder why these two questions always drive girls crazy when you ask them. They tend to make a mountain out of a molehill from it, when it's a simple question. Sometimes, some would get annoyed, or those that don't want to get angry would end up asking you, "why do you want to know? "

The question is:
> How old are you?
> Are you a virgin?

Maybe ladies in the house can help us out to respond to that, why they flare up at the hearing of the questions or asking a question to answer your question, rather than giving a straight answer....