What are the words to Britain's national anthem?

Question

Or does it have words? I have never heard it sung, only played.

Answer 1

It's called "God Save The Queen". You can see all the verses at wikipedia. Generally Britons only know the first verse, and even then most do not manage to sing it word perfect ("God save our Queen" being a common mistake on the third line).
http://en.wikipedia.org/wiki/God_Save_the_Queen