Informal due to age and growth of company at the time of interview

I was asked a list of questions ranging from what do you know about the company, how did you hear of the job opening, what is your desired salary, what shift do you prefer to work. The interviewer basically asked me all these questions and then asked me if I had any. I asked him a few questions regarding the position I was interviewing for and how much growth would I be able to reach say that they decide to hire me for this particular position, etc.