Write about a childhood hero and what she or he meant to you then. Does this heroic figure influence your life now? If so, how? If not, why not?
Who were your childhood heroes? (Or the closest approximation)?
If you have trouble remembering, try remembering your room when you were young. Chances are traces of your heroes were present in your room (posters, books, games).
If you can't remember (or would rather not), describe one of your friend's childhood heroes, or the heroes of some child you now know, and try to answer the questions for them.