Sweet 16 dinner part ideas?

How about putting together a questionnaire of about 10-15 questions and have the quests ask each other the answers. The first one to complete the lists wins. Or you could have the teens ask the adults-since many adults do not like a lot of mingling in close quarters. The questions could be like a scavenger hunt of knowledge-who has been to Rome? Who can't ride a bike? Who has never been fishing? Who owns a horse? Well, you get the idea and your parents could help with the questions?