The first one I did is here.
1. Favourite book in the series.
Deathly Hallows. It answers everything as well as ends everything :)
2. Least favourite book in the series.
Order of the Phoenix. It's painfully obvious when I read it nowadays that she really had no idea what to do with that one when she started it.
3. Favourite character.
Dumbledore. He's just awesome.
4. Favourite villain.
Bellatrix Lestrange. She's so deranged it's fascinating O.o
5. Saddest moment.
Death of Dumbledore
6. Favourite professor.
7. Least favourite professor.
Gilderoy Lockhart. Yes, he beats Umbridge!
8. Favourite subject.
9. Least favourite subject.
Divination. It's just a bunch of crap.
10. Favourite shop in Diagon Alley.
Either Florean Fortescue who sells ice cream or Weasley's Wizard Wheezes... I'm not sure.
11. Most handsome character.
Sirius Black. Not Gary Oldman. Just Sirius Black.
12. Most beautiful character.
13. Most missed dead character.
14. Favourite book cover.
Now this is a tricky one. I'm not a big fan of the original British covers and I don't really like the American ones either. But I used to really love the Swedish covers of Philosopher's Stone, Chamber of Secrets, Prisoner of Azkban and Goblet of Fire (the first four and also those I've read most in Swedish). I also like the adult cover of Deathly Hallows. I'm not too sure about the signature versions. I think the colours are too bold.
15. Favourite Tri-Wizard Tournament challenge.
The Third Task. The hedge maze. It's fantastic. A perfect way to let the best win. The one who knows enough magic to beat whatever is thrown in front of them.
16. Favourite Hogwarts house.
I'm a Slythclaw. And I can't really decide between them.
17. Favourite animagus.
18. Favourite unforgivable curse.
Am I too morbid if I say the Cruciatus Curse?
19. Favourite horcrux.
The Slytherin locket
20. Funniest moment.
"I've got a good feeling about going to Hagrid's"
Or potentially "I've always wanted to use that spell" and "Boom!"
21. Most emotional moment.
Death of Dumbledore
22. Aspired Quidditch position.
Chaser. I think I'd suck a little less in that position than at everything else :P
23. Whose pantronus is your favourite?
Luna's. A hare.
24. Your own patronus.
Probably a dolphin or a rabbit.
25: Favourite Dursley.
26. Favourite wand.
I think I'll have to say James' or Lily's... Or maybe Draco's...
27. Favourite magical ability.
The flying Voldemort and Snape does. It's Dark Magic but who wouldn't want to be able to fly? Honestly?!
28. Favourite death eater.
29. Favourite Hogwarts portrait.
Hahah! Sir Cadogan ofc! :D
30. Favourite spell.
Accio. I'm lazy enough to like that.