Trivia Quiz #38: Grab Bag

This one's Jeopardy! Style; I'll give the answers and you must come up with the question:

1. The Hulk, Captain America and Captain Marvel.

2. Captain Marvel and Wonder Woman.

3. Superman, Thor and the Vision.

4. Quicksilver, Johnny Quick and Dr Fate (among others).

5. 25 trillion miles.

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