Answer: Zabuza
Zabuza and his assistant Haku fought against the ninja from the leaf and both died on the bridge.
From Quiz: "Naruto" #1
Answer: Obito Uchiha
"In the Ninja World, those who abandon the mission are regarded as scum. But those who would abandon their friend, are worse than scum." Kakashi quoted his former teammate, Obito Uchiha.
From Quiz: Naruto [1]
Answer: Killer bee
Jiraiya and Kakashi were mentors but did not teach him to control the Kyuubi. Sasuke was not a mentor.
From Quiz: The Ultimate Impossible "Naruto" Quiz
Answer: Zetsu's clone.
Actually, he killed a Zetsu clone while Kisame hid himself within the samenda. This was how Kisame managed to infiltrate and gather information on the preparations for the war.
From Quiz: "Naruto" Shippuden
Answer: 3
The first phase was a written test. The second phase was a survival race trough the forest of death and the third pahse is the finals. The preliminary round is not one of the phases. It only takes place if there are too many contestants left form the first two phases
From Quiz: "Naruto" Chunin Exam
Answer: Fire, water, earth, wind and lightning
Yamato and Kakashi explained about the elements when Naruto was learning his "wind" element.
From Quiz: "Naruto" Anime
Answer: Flower Shop
It's mentioned and shown once or twice, when Sakura is getting flowers for Sasuke and Lee.
From Quiz: What Do You Know About "Naruto"?
Answer: Killer Bee
Killer Bee has full control over the Hachibi. Naruto goes in search of him to find out how to control the Kyuubi.
From Quiz: The "Naruto" Quiz
Answer: Shino Aburame
Shino trades his chakra in for the use of the bugs that inhabit his body; this is a trait that is used by his entire family.
From Quiz: Characters of "Naruto"
Answer: To get stronger
Sasuke wanted to break the bond between himself and Naruto because it was Sasuke's suffering that made him stronger and if he killed Naruto he would obtain the Mangekyo Sharingan.
From Quiz: The "Naruto" Trivia
