[RoboMadi]

I'm just gonna mention my own experience from last year.

Regional: There were only two judges.
Championship: There were Four judges.

Team is allowed to send there students inside the room for an interview. BE PREPARED! especially know what you are talking about. Let everyone have a chance to talk. Team has 5 minutes to talk about themselves and than Judges have 5 Minutes to ask questions.
Be specific in your answers. Don't hesitate and whoever knows the answer should answer it (instead of looking at each others face).

Whole point is to be prepared for the unexpected. Last year we were asked a question, which was not expected at all........ thank god my partner took it upon him and knocked it out.
Also try to be creative. Power Point Presentations and Videos are ok, but it would be awesome if you can be a little more creative. Judges usually read submittion before the interview, so those 10 mins are there to make an impression.
Good luck teams!

Imad