This one is worthwhile and interesting.
http://www.americancivicliteracy.org/resources/quiz.aspx To put my own spin on it: I got two wrong -- can you guess which two? It's a bit of a trick question, in that I got one of them wrong through carelessness, though I suppose that hint might help to pick it out. You get three guesses.
Oh, yes: stolen from
ilaine_dcmrn