Some things that have been bugging me since my last re-read...
[1] How does Filch, as a Squib, have extensive knowledge of Hogwarts? Surely if he was a wizard, he'd have never attended the castle right?
[2] How did Fudge get his Order of Merlin, First Class?
[3] What was Tonks' old Patronus and what is her new one?
[4] Why did Dumbledore think Tom Riddle Jnr would be a "funny boy"? Is it because he was conceived under a love potion?
[5] What really happened in the cave between Amy Benson, Dennis Bishop and Tom Riddle?
If you could help that'd be great thanks!