Sorry for bringing an old thread back, but since I've found a few stupid answer videos I want to share I thought I'd rather bring this thread back than make a new one.
First of all, a classic Family Feud send-up from Fast Forward:
2: 'Name a specific food with an edible skin'
Unfortunately the sound quality on this video is not so hot and the picture quality is shocking (camera pointed at a TV screen), but you can still hear the answer and see the resulting hilarity.
3: 'Something men wear to bed'
4: Skip to 2:20 (the second contestant) on this one, as the first contestant's answers are sensible.
5: Clips from various shows
Finally, a link to a site that contains hundreds of questions and stupid answers from different game shows, with audio clips for most and some video clips too.