Whose Line is it Anyway? A short quiz

I'm not a great one for sharing things I've seen on other websites (you've probably noticed!) but I enjoyed a few snorts with The Guardian newspaper's "Whose Line is it Anyway?" quiz featuring Charlie Sheen and Muammar Gaddafi, so here it is! I got most of the answers wrong, several times, which goes to show how much I know, doesn't it?