Superpower, eh. I guess I am "Analysis Man". I am pretty good at analyzing a problem or technology and finding a solution or figuring how to make it work. It's why I'm largely self-taught on technology and how I went from librarian to corporate IT. Even with money, while I can't work out sales tax in my head or anything, I am pretty good at costing out projects and working out a plan from a budget. Again, it's just my knack for working something through.
Of course, my superhero weakness, in case it is not obvious already, is "paralysis through analysis". I can get caught up in the analysis and overthink a problem or question rather than making a decision.
So my power is great for project management, solving problems, and such but not so much for making snap decisions or dealing with interpersonal, on the spot type situations.