You obviously didn't read my comment... It's ok. Most plotholes in GT can be cleared with a little common sense and reasoning. Like I said, if you dislike Gt for it's plotholes then you must hate Dragonball z(plotholes galore).
You couldn't come up with better ones than these?
Let's put the real answers here:
Q: How did Vegeta get his body back after selfdestruction"?
A: Heroes are allowed to keep their bodies (this was explained when Goku died fighting Raditz) Vegeta sacrificed himself the same way Goku did.
Q: How does King Yama deal with villains like Frieza, Cell, Buu if he "had a hard time" with Raditz?
A: Was it ever said that Yama
didn't have trouble Frieza, Cell, Buu? That is a major assumption. Also he could NOT handle them, Goku and Pikkon had to be sent to handle them because they started a riot in hell. As for Buu, he started soul killing people the second he showed up, King Yama was helpless, Buu beat the crap out of dead Krillin, do you not remember that?
Q: How did the Ginyu Force get to King Kais planet?
A: King Kai invited them specifically to help them train, the Kai's out rank Yama.
Q: Why can some animals talk while others can not?
A: This doesn't exist in GT? If not, then you got 1 point.
Q: Who granted Goku's wish for Kid Buu to come back as a good guy?
A: The eternal dragon, from Dende's dragon balls.
Q: What happened to Frieza's "five minute countdown"?
A: Read the manga, power ups don't last for 3 hours. As for the Anime Frieza complained about not putting enough power in his bomb
Q: Why can Goku's father breath in space but Goku can't?
A: Saiyans can breath thin air, Bardock was not in space he was in the stratosphere of planet Vegeta, Goku can also breath in the stratosphere, as was illustrated in "Worlds Strongest" battle with Dr. Weelo
So as you can see, most your plot holes are imagined, and exist only because you want them too. This was more of a list of things that a A.D.D person would come up with because they keep missing important details explained by the fiction (and not "fan-filled" plot holes).