1. ...owned a restaurant, what kind of food would you serve?
Real authentic chinese food, with dim sum service on weekends.
2. ...owned a small store, what kind of merchandise would you sell?
The kinds of things you might stop to buy on the way home, or in the middle of the night. Snacks, TP, diapers, drinks, batteries, that kind of thing.
3. ...wrote a book, what genre would it be?
Hmm, sci-fi or fantasy I think.
4. ...ran a school, what would you teach?
Physics, of course.
5. ...recorded an album, what kind of music would be on it?
Probably instrumental stuff.