Well, I speak Dutch. But I can speak English very well as well. We learn British English at school, but on television you usually see people use American English (all those movies... -_-;; ), and I've been to the US twice and once to Canada, so you can pretty much say I can speak those two kinds of English quite well.
I also know quite some lot of German, what we learn at school, and a bit of French as well. However, that French isn't really great. I can pronounce the stuff right, but in a real conversation, you're better off talking to a wooden fence.
Once I have been on vacation to Spain, Salou, so I know a bit of Spanish as well, since I had to learn that, or at least wanted to understand it.
About Chinese and Japanese, I only know a few words, same goes for Russian, and I don't speak Portugese at all.
As for other languages, well, I'm really bad with leaning languages, so it aint much. I do know a bit of Greek, and a really tiny bit of Italian, but that's all.
I always have a hard time with languages, because most of them have genders for each object. In Dutch, you don't have that. Same for English. And still people seem to have a much easier deal with learning English than Dutch. Must be because English is a more world-spread language. Ow, well.
Further, I second what Dr. Cossack stated, what about people who know more than just one? Okay, people'll take their 'mother tungue', but what about people who have learned two languages from birth like in Canada and Belgium?
[Edited on 25-11-2005 by Morphman]