Oh that was disappointing - I hadn't heard of one of them so I hit what I thought was the "skip" button, and it took me straight to the results of all of the questions without letting me try any of the rest.

I realise that this is because I am stupid - there is a warning, but I thought it was just warning me I wouldn't be able to try that question again, not that I wouldn't be able to try any of them. (It said that you wouldn't be able to go back again, but I didn't want to go back - I wanted to go forward.) Boo.