Timus Top Coders are back with their forthcoming "Third Challenge" contest! I really think the problemset is just amazing.

And it will be supported by... hmm... very funny stories for problem statements. Since the texts are in process now, you may suggest some themes (just themes, not connected with the problem itself) for them. About Americans, citizens of [Censored] and so on :)

See http://acm.timus.ru/contest.aspx?id=50