What a fascinating idea!
A real-life superhero.
I think I would want to have the superpower of conflict resolution. I would have the power to influence people’s minds and remove the thoughts of going to war on trivial issues. I would influence them to go towards peaceful solutions to the problems.
My super power would be used mostly to prevent wars and conflicts on a worldwide scale. But if I have time I could also use it to resolve issues among ordinary people too. But then I would be busy 24/7!
The problem with using this awesome power would be when I encounter people who don’t have any brains! Now if that part of the skull is just full of hot air and idiotism, how would I make them see reason?