[Retroman]

Also, we can't trust anyone not to ask for help.
Your opponent could cheat and you'd be completely clueless because we're on the internet. So you could easily lose to someone who looked the answers up, or vice versa for them.

Not to mention questions could be as specific as: What colour top did Craig wear on Big Brother 1 on day 23?

So random questions of varying difficulty from random people amount to nothing.

^ Taken from an edit of my last post.

Anyway, have fun...
But as I said, if you lose, remember that it's easily possible you lost to someone who looked up the answers =] and you'd never know either way.