How do you defeat the following comic book bad guys?

The world of comics has given us many iconic superheroes and supervillains. The latter of which are arguably the most important to the story as you've already met the heroes so you know what they do. And every once in a while you come a cross a bad guy who it looks like the good guy (s) have absolutely no chance of defeating. And while it's 100% important to make people think that the hero doesn't stand a chance against said villain. The whole point of that is because eventually you have to figure out how the hero will defeat the villain as you have to eventually. So I've decided to put together a list of comic book antagonists and ask what the most realistic ways are to defeat them. The list is as follows

1. Deathstroke
2. Trigon
3. Doctor Doom
4. Kang The Conqueror
5. Darkseid
6. Ultron
7. Braniac
8. Galactus
9. Lex Luthor
10. Bane

How do you defeat the following comic book bad guys?
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