Continuity mistake: In "Enter: Naruto Uzumaki!" While Iruka is thinking about what the Hokage said about Naruto, he's in bed without his green vest. When Mizuki pounds on the door, Iruka sits up and he's wearing the vest. But, when he opens his front door, he's not wearing it again.
Question: Why were the preliminary trials for the Chunin exam done as single elimination? It would not really cause the best of the best to be chosen because when two strong Ninjas fight (like Gaara and Rock Lee) one has to lose, while when two weak ninja (Sakura and Ino) fight, one gets to go through, only to be guaranteed failure. How is that fair?