Girl asks me questions. What does that mean?

It means that she is looking for information and that you seem to be a person likely to know the answer. If you want to avoid trouble don't read more than that into the encounters.

It means she is asking you a question. Don't mistake it for anything. And by your question I'm guessing you're inexperienced in the relationship game, dudes are meant to make the first move so if you like the girl, flirt with her, make physical contact and when you feel enough attraction, ask her out. Easy. Hopefully this helped :D