Should also be awfully easy for all of us to catch the mistakes. I caught 5 of them.
Also, the answer to #12 should be duly noted, lol. (And I'm NOT saying that one is a mistake...) ;-)
I will also say that I found the format confusing at times - when the first question that was NOT a multiple choice popped up, I thought they had mistakenly left the choices out. Then I began to catch on that there were going to be different forms of questions. I wish they had said that beforehand.