for one Ja Ja was not in episode V he was in Episode 1 2 3 He was a Gungan
That is yet to be revealed
Return of the Jedi
Star Wars Episode I: The Phantom Menace came out 22 years after Star Wars Episode IV: A New Hope (it should be noted it was just called Star Wars until 1983)
Mos Eisley.
The Empire Strikes Back
Bacta
I really don't understand what you're trying to say. The first Star Wars movie was originally named "Star Wars." But when the prequel trilogy was being released, the name was then changed to "Episode 4: A New Hope."
His name is Watto.
Rancor.
The first Star Wars movie was simply called Star Wars because George Lucas thought there was little chance for a sequel. After more movies were made, the name was changed to Star Wars: A New Hope.
Star Wars Episode IV: A New Hope (a.k.a. the original released as just "Star Wars" in 1977).
Star Wars Episode IV: A New Hope, 1977; Star Wars Episode V: The Empire Strikes Back, 1980; and Star Wars Episode VI: Return of the Jedi, 1983.