It is a very good question! I believe that making questions actually a way to convince the interviewers that you are different from all the other people who applied for the very same job. Some of the questions you make should also convince them you take them seriously and you are motivated to get a job that really suits you, therefore I think that asking "what does this job offer me?" is a fairly legitimate question. Also have a look at this post: http://www.business-students.net/mba_admission_interview