Are you a true Hogwarts alum or just a muggle pretending? Find out with this essential Harry Potter quiz

It's a book series which has taken over the world, but how knowledgeable really are you on Harry Potter? Let's find out.Ever since the first books in the childrens' fiction series became a massive smash hit, Harry Potter fever has taken over the world. We all know the movie adaptations but we've also seen video games, TV shows (no, not just that...