What are your hobbies?
This question is meant to show the interviewer if you are involved in any extracurriculars which go to show that you are well rounded and not a stressed workaholic. Feel free to come up with any hobbies that will provide the interviewer a different perspective.
"On weekends, I like to play tennis with my college buddies. This releases stress and also allows me to learn teamwork. I also enjoy playing the piano. I took piano lessons from when I was five years old until I started college. The piano is a great way to relieve stress and focus on me. The music enables me to lose my self, so-to-speak, and focus on something positive. It also refreshes me for the upcoming week."