clicking on forfeit gets you the answer ( which is a shortcut for hitting "ESC" ) but it looks like you can only use Escape to go to the next question.

pretty cool quiz, i definitely don't know hardly any of these...

Ah, thanks! The help says to click again to go to the next one, but that doesn't seem to actually work.

Edit: ahh, it does work, but the first time I did it the red bar completely covered the forfeit link. Subsequent times it's been above and fine.