Funny answers

I was faffing about with Firefox today, taking off some of the extensions I never use (so of course I ended up adding more). One of the new additions is a quiz toolbar and following a link led to this page:
http://www.worldsbrainiest.co.uk/funny.php
It was at this point I lost it:
Question: What is the collective name for Tinky Winky, Dipsy, La La and Po?
Answer: Spice Girls

Apparently, that's not the right answer - but it really should be.