A - What are you looking for ?
A- Random sex, preferably with women. A plus if you're into bondage.
B - What happened in your last relationship ?
B - I can't tell you out loud, but let's just say that nobody's seen her in weeks.
Dismiss them with jokes. Answering these questions is terrible 99% of the time because:
1. Chances are what you say you're looking for isn't what she is.
2. If you answer you're exposing yourself. Women like a guy that is mysterious yet isn't closed. Dismissing with a joke shows that you're not uncomfortable about the question (i.e. it didn't freak you out) and you were able to retain your mysteriousness as well. It also shows them that you know how to handle yourself when put on the spot and that you are humorous.
Also, direct the question back at her, then. Turn the tables. Start grilling her. Then you will have the upper hand. Push her to see where her limits are. Have fun with it.