I have some suggestions for you. I would only do questions with one-word answers. Very few people will manage to get the questions on what keepers and bludgers do because they will have to get it exactly right. There are too many possible ways to answer that question that you probably can't even write enough type-ins for it. I'd also recommend doing type-ins for other answers. For example, you have to write 'seven' to answer the question about how many players there are on a Quidditch team. Maybe add '7' as a type-in. You could also do it for the fastest capture of the Snitch. Currently, you have to write 'three and one half seconds.' Maybe add '3 and one half seconds,' 'three and a half seconds,' '3 and a half seconds,' and '3.5 seconds.' I would also stay away from opinions, like the one on the foulest Quidditch team. It may not be your opinion, and a character might of stated that they were the foulest, but then I would write; (see reply for more)
According to *character name* which Quidditch team is the foulest? Other than those things this is a great quiz. I haven't created any quizzes yet although I do plan to, and I bet my first one will be way worse. I just wanted to give you some feedback based on some of the quizzes I have taken.