Considering you like the Hunger Games, you might as well read a book that is near identical but written earlier, Battle Royale.(Though I might add that this book was almost banned due to mature content, and no, not THAT kind of mature content.) I also recommend Lord of the Flies just because it provokes thought in the reader. That and A Clockwork Orange, but don't just watch the movie and say you're done with it, the book is way better to the point where the movie misses an entire stage in the book.
Maximum Ride, Witch and Wizard, and Daniel X series by James Patterson. Percy Jackson and the Olympians, Heroes of Olympus, and Kane Chronicles by Rick Riordan. Inheritance series by Christopher Paolini. Artemis Fowl Series by Eoin Colfer.