So what do you know about biscuits?
http://www.bbc.co.uk/apps/ifl/worldservice/quiznet/quizengine?ContentType=text/html;quiz=1519_biscuits

It doesn't matter if you don't know the answers, after all, you are learning English.
Even native speakers  wouldn't know all the answers.

I did the quiz and I got nº 5 wrong!
I got nº 5 correct at the second attempt.