Can anyone give me some REALLY REALLY hard harry potter questions...?

Question:

Can anyone give me some REALLY REALLY hard harry potter questions...?

I love Harry Potter, and i want to test how well i know it. Can someone give me really diffucult questions and then the answers (my friend willl quiz meh) So Questions and answers?????????? Whoever has the most challenging questions gets all the points!
Thanks!

Best Answer - Chosen by Asker: 1. In the Philosopher's Stone, which one of Petunia Dursley's friend was on holiday in Majorca on Dudley's eleventh birthday?
2. Where is the Leaky Cauldron located?
3. Where did Tom Marvolo Riddle buy his diary?
4. Just how many people called Sirius are there in the Black family?
5. What are the names of all of the students in the D.A. and what Houses are they from?
6. Where can a person find a Fwooper?
7. Where can a person find a Pogrebin?
8. In Quidditch what is Blagging?
9. Where is the Malfoy Manor located?
10. What school was Justin Finch-Fletchley's name put down for before he found out he was a wizard?

Answers:
1. Her name was Yvonne.
2. Charing Cross Road in London.
3. Vauxhall Road in London
4. According to the Black Family Tree drawn by JK Rowling, there are three and that includes our beloved (or hated) Sirius Black.
5. Harry Potter- Gryffindor
Hermione Granger- Gryffindor
Ron Weasley- Gryffindor
Ginny Weasley- Gryffindor
Neville Longbottom- Gryffindor
Luna Lovegood- Ravenclaw
Hannah Abbot- Hufflepuff
Padma Patil- Ravenclaw
Parvati Patil- Gryffindor
George Weasley- Gryffindor
Fred Weasley- Gryffindor
Lavender Brown- Gryffindor
Susan Bones- Hufflepuff
Zacharias Smith- Hufflepuff
Terry Boot- Ravenclaw
Ernie MacMillan- Hufflepuff
Michael Corner- Ravenclaw
Dean Thomas- Gryffindor
Seamus Finnigan (one meeting)- Gryffindor
Cho Chang- Ravenclaw
Colin Creevey- Gryffindor
Dennis Creevey- Gryffindor
Justin Finch-Fletchley- Hufflepuff
Angelina Johnson- Gryffindor
Katie Bell- Gryffindor
Marietta Edgecombe- Ravenclaw
Anthony Goldstein- Ravenclaw
Alicia Spinnet- Gyffindor
Lee Jordan- Gryffindor
6. Africa
7. Russia
8. It is a foul and it is when a player grabs onto the broom tail of another player.
9. Wiltshire
10. Eton