Challenge Oxford quiz

From OUP: "Ever wondered how your wordpower stacks up against the word experts of Oxford? Well, now you can find out. Our dictionary team has come up with a fun internet quiz that tests your language knowledge against the new edition of The Concise Oxford English Dictionary. We were even lucky enough to have Countdown's Susie Dent - whose new book for OUP comes out in the UK in the autumn - chair the quiz for us"