Harry Potter and the Chamber of Secrets

What did Professor Lockhart first bring to class?

When Flint (The Slytherin Quidditch captain) was making fun of the Weasley twins' brooms, what kind of broom did they have?

Where did Harry first hear the voice that nobody else could hear?

Who explained the story of the Chamber of Secrets?

In the dueling club, who was partners with who?

When Harry was looking for Justin, he walked by a classroom. Professor McGonagall was yelling at someone for what reason? Someone turned their friend into a...

Who found the accusations of Harry being the heir deeply amusing, so amusing that they made jokes all the time?

When Harry and Ron took the Polyjuice potion, they looked for someone to find the common room of Slytherin. The met a curly-haired girl and Percy. Who was the girl?
(They never said her name, but you would know it if you read the book.)

What did Ron and Harry give Crabbe and Goyle so they would fall asleep, and they could take hairs from them?

What did the Dursley's send Harry for Christmas?
There was a note wondering whether he could stay for summer vacation too, and..

Who was Harry, and who was Ron?