Yes, Obi-wan and Darth Vader fight twice. Once on Mustafar, where Obi-wan was the victor, and once on the Death Star where Darth Vader killed Obi-wan.
Obi-Wan Kenobi was the last person to fight with Darth Maul. But Obi-Wan also killed Darth Maul.
In the newer one. And in episode 4 they fought again. They fought on MUSTAFAR. Obi-Wan fought with a fully fledged Darth Vader later.
Obi-Wan cut them off in the fight on Mustafar
Obi-wan never used the dark side of the force to defeat Darth Maul. Not in the fight on Naboo and not on the fight on Tatooine.
Darth maul stabbed and killed Qui Gon Jin and obi wan stabbed Darth maul
Darth Vader's old master was Obi Wan.
Darth Maul was killed on Naboo by Obi-wan Kenobi.
Obi-Wan's body literally became one with the Force.
first of all, it's kenobi and now the answer is that Darth maul kills qui-gon, Darth maul knocks obi-wan down and he hangs on to something, and grabs qui-gon's lightsaber with the force, jumps up and kills him.
Obi-Wan Kenobi.
His arms and legs where sliced off and he almost died after lava when he lost a fight to Obi-Wan.
Obi-wan dies in Episode IV A New Hope because Darth Vader killed him.