This story is mostly about Dumbledore's attempts to find a Horcrux with Harry's help; also about the attempts on his life, Ron and Harry's love lives and the potion book Harry is using. For the full storyline, you will need to read the book as it is too long to explain in this answer
Harry Potter himself - wp2b.com
The story of Harry Potter and The Half-Blood Prince is mostly about the horcruxes, Snape, and the book. The half- blood prince is Severus Snape, Harry's professor in Defense Against the Dark arts. Harry finds the first horcrux with the help of Professor Dumbledore, they destroy it to make Voldemort weak. Harry find a book that belong to the half-blood prince (Snape), the book was the source of praise Harry got in his Potions class it was also the source of trouble.
No.
Bellatrix Lestrange kills Sirius Black (Harry Potter's godfather) in book 5.
Weasleys' Wizard Wheezes is introduced in Harry Potter and the Half-Blood Prince (Book 6).
Book 6 is "Harry Potter and the Half-Blood Prince"; book 7 is "Harry Potter and the Deathly Hallows".
Yes; the sixth part of the Harry Potter series is a book, as well as a movie, entitled Harry Potter and the Half-Blood Prince.
In book 4 and 5, Harry Potter has a crush on Cho Chang. Later (starting in book 6) they split, and Harry falls in love with Ginny Weasley.
14 (in the book).
Deathly Hallows is not the tenth book. Here is the list: Book 1: Harry Potter and the Sorcerer's Stone Book 2: Harry Potter and the Chamber of Secrets Book 3: Harry Potter and the Prisoner of Azkaban Book 4: Harry Potter and the Goblet of Fire Book 5: Harry Potter and the Order of the Phoenix Book 6: Harry Potter and the Half-Blood Prince Book 7: Harry Potter and the Deathly Hallows There are going to be 8 movies, because Deathly Hallows is being split up into 2 parts. But, if you count Tales of Beedle the Bard, Quidditch through the Ages, and Fantastic Beasts and Where to Find Them, then there would be 10 books.
book 1 Harry Potter and the Sorcerer's Stonebook 2 Harry Potter and the Chamber of Secretsbook 3 Harry Potter and the Prisoner of Azkabanbook 4 Harry Potter and the Goblet of Firebook 5 Harry Potter and the Order of the Pheonixbook 6 Harry Potter and the Half-Blood Princebook 7 Harry Potter and the Deathly HallowsYou said book 8 in your question
The sixth Harry Potter book, Harry Potter and the Half-Blood Prince, was release worldwide on 16 July 2005. The film that corresponds to the book will be released in cinemas worldwide on 15 July 2009.