I'm with Olorin. A few key words make a big difference, and many times I'll go with "the one answer I've ever heard of". Sometimes that fails... cricket results, Australian musicians (except that one good singer

), UK geography...
In excess of 95% of the time, "All of the above" is the correct answer
And a wheel mouse makes a lot of difference. I usually keep a thumb on the space bar, too... sometimes the mouse clicks don't take, but a space bar will cover it.
About two years ago (man, has it been that long?) I used to cheat... I'd open nine or ten google windows before starting the quiz, and I'd copy/paste the questions in as best I could. I'd get 'em all right (usually), but it would usually take well over 100 seconds... and I could do *that* on my own.