Having been through the process last year, and having been successful, especially on the interview end, I can honestly say that the way you should answer these questions is honestly and personably. Spill your guts.. don't breakdown and start crying or start talking about inappropriate subject matter, but let them know who you are. Interviews are not academic. Your gpa...your MCAT scores...transcripts... those are academic. The purpose of an interview is to see what kind of person you are. Sure, you may have the grades, a 35 on the MCAT, but are you a Schmuck? If you are, then chances are they aren't going to want to train you as a physician and have you represent their institution one day. You can let them know that you are an intellectual in an interview, but even then, that is not completely correlated with academics. Some of the greatest intellectuals in history were poor excuses for students. You have gotten an interview... that means, they are prepared to let you in. Now you have to make them want to let you in. Just answer the questions they ask in a manner that represents YOU. If they don't accept you, that's their problem.