saving peter pettigrew (wormtail) when he was the one that told Voldemort where Harry's parents were in hiding
There is only one Harry Potter, and he doesn't die in Azkaban.
Harry has multiple enemies, but his main one is Voldemort.
No-one does.How-ever is was a lie that harry potters aunt told harry as a child.The lie was his mother and father dies in a car crash,when in reality his parents were murder'd by lord voltemore[sp].
Anybody who has one magical and one non-magical parent.
By taking the polyjuice potion.
Harry Potter did not have any siblings, so he cannot have a nephew. He is, however, the godfather of Teddy Lupin, the son of one of his dad's best friends. Although J.K. Rowling has confirmed that Duddley Dursley, Harry's cousin, had non-magical children, they have not been named.
Answer: Yes. Harry uses the Resurrection Stone to bring back James, Lily, Sirius, and Remus for a few minutes. Answer: Not really. It is more like Harry having contact with them in the spirit world (Harry is the only one that can see them).
No one, but they have been translated to Chinese.
No. Sirius Black was one of James Potter's best friends. Upon discovering that Voldemort was hunting them, the Potters' went into hiding, naming Sirius as their Secret Keeper, meaning he was the only one to know where they were. At the last moment, Sirius switches from this role with Peter Pettigrew, whom he believed they could trust. Pettigrew betrays the Potters' to Voldemort which results in Voldemort's murdering them, and pins it on Sirius.
If you mean Hogwarts, no one know, except for the fact that it's in Europe.
one can find about harry potter's life on wikipedia or potter lexicon or on rowlings official site.