Why seven questions you ask? Well in Harry Potter there are 7 Weasley children, 7 years at Hogwarts, 7 floors at Hogwarts, 7 core subjects, 7 players on the Quidditch Team (also Harry's number in the films is 7), there are 7 ingredients for Polyjuice Potion, 7 Attacks from the basilisk in Chamber of Secrets, the marauders map has 7 secret passage ways, dobby had 7 socks, Harry was born at the end of the 7th month, 7 locks on Moody's trunk, Ron and Harry both earned 7 O.W.L.s, Dumbledore showed Harry 7 memories of Voldemort's past, Voldemort had 7 Horcruxes, and there were 7 Defense Against The Dark Arts Professors in the series. Coincidence? I think not.
