What Question Do You Want Answered?

So if you could get the answer to any question you asked, and you were only allowed to ask just one question, which question would you want answered?

Is there a question that you do not want the answer to?  Why?

Sitting in a Ball Pit with a Stranger

If you chose to sit in a public ball pit with a stranger what would you want to know?  What would be the first couple questions you would ask?  What would you want them to know about yourself?  What wouldn't you want them to know?