Assuming you're talking about the first book, and not the whole trilogy, it was Cato. Actually, I should say Cato was the last to die within the book - Seneca Crane was the last person from the first book to die, but his death didn't actually occur in the book, and happened sometime between the first book and the second book (Catching Fire).
The last person in the whole trilogy to die was presumably President Snow.
no
No, he marries Katniss, grows up and has 2 kids: a boy and a girl.
no
No, she doesn't.
In past hunger games 23 people died. The hunger games in focus in the book, 22 people died.
I'm pretty sure it was Prim.
No, Katniss* doesn't die.
She dies in the last book in the hunger games series, the mockingjay.
Cato I believe that is only in the first book though
No, she and Peeta marry and have two children.
No, Katniss doesn't die in The Hunger Games series.
No, Haymitch does not die in the 50th Hunger Games. He does not die throughout the book series either.
No. Peeta does not die in any of The Hunger Games books.
no
They die.
No, she doesn't die.
No,he does not die.