It is 2 years,he went training with Jiraiya to become stronger like the others
I do not know what pisode means but if the question was "What episode does Naruto go to training?" the answer to that is. Naruto trains in many episodes and learns more techniques throughout the series so there is no one specific episode that naruto trains on.
It takes about 2 years to finish an IT training program
8 years of flight training
Med school and then some. Many, Many years of specialized training
10
I don't but is it 20 years
14 to 20 years
20 years in total
every two years
Jiraiya trains Naruto in many episodes. Jiraiya is Naruto's new trainer instead of Kakashi sensei. But Jiraiya starts training him in episode #53 and just becomes Naruto's new trainer, also, Jiraiya is one of the three legendary sannin along with Tsunade and Orochimaru.
mostly about 5 years
Technically, Naruto has been asking her out for many years and she has been denying. Although, in episode 206, Sakura tells Naruto "I love you", so he stops going after Sasuke.