There are loads of Youtube vids based on this idea.
Some great videos on this site that, as the title suggests, have 50 people answering one simple question. The one below is "What is your secret?", others include "Where would you wish to wake up tomorrow?" and "Before the end of today, what would you wish to happen?". Some great responses some of which are not aimed at kids.
See the site here:
http://fiftypeopleonequestion.com/
PostSecret: Confessions on Life, Death and God from Frank Warren on Vimeo.
