The song that plays in the beginning is "Louie Louie" by Richard Berry.
In episode 10
arithmetic starts with m while number theory starts with n
Episode 251 The tale of 2 warriors (this is the episode the fight starts)
it starts at episode 163
Episode 268 is when the league starts
Miley starts high school during the first episode of the second season of Hannah Montana. The episode aired on April 23rd, 2007.
Charizard starts obeying Ash in the Orange League episode titled "Charizard Chills."
Manioc
Episode 114 but watch 113 first
It starts in episode 19 (shippuden)
It starts at episode 256 watch off narutoget
The fight between Luffy and Crocodile starts from episode 122