Question: Does Salem ever become human again?
Chosen answer: No. In the show he was sentenced to 100 years as a cat and only served 25 years at the time of the pilot (all episodes of him being human are flashbacks). The comics did several retcons to change Salem's backstory to fit the show's, and as of 2015, he was still a cat.
Instrument of Destruction - S1-E12
Question: Throughout the entire Power Rangers series, Skull has shown to scream in fear whenever confronted by a terrifying monster or a group of them. In this episode, how was Skull, who was dressed up as the Phantom Pianist at the time, able to keep his fear in check when the Cogs came to get him?
Answer: Instrument of Destruction.
The question was how was Skull able to keep his fear in check when the Cogs came to get him. Not what episode it happened in.
Question: Was there any reason why Gary's wife left him?
Answer: No reason is given.
Question: Why does General Ross keep trying to kill Hulk?
Answer: The Hulk is a giant brute who smashes everything in his path when he is angry. In Ang Lee's "Hulk," General Ross, played by Sam Elliot, explains it to his daughter.
Answer: Because he feels the Hulk is a threat to all life on Earth, and particularly his daughter's close relationship with Bruce Banner puts her at risk when Hulk enters the equation.
Why does Ross think the hulk is a threat?
Because the Hulk is nearly mindless and goes on destructive rampages with high risk of collateral damage.
If that's the case, what's the problem with the way general Ross judges the hulk?
Question: Is there a particular reason why they decided to get rid of Scorpinock and Terrasaur?
Chosen answer: Terrorsaur was probably removed because his character was far overshadowed by Tarantulas. Both characters were treacherous and backstabbing towards Megatron, but it wouldn't have made sense to have two characters who served the same purpose, story-wise. Scorponok was removed because they wanted to introduce Quickstrike, and it wouldn't have made sense to have two scorpion characters on the show.
Answer: In the S6 E18, "I, Busybody" Salem got permission from the Witch's Council to be human for one day to meet his pen pal, Roxie. It was all a point of view camera shot.