You are walking the backways of Metropolis when you find the man of steel doubled over in an alleyway. Upon closer examination, you realize the poor man has a very large thornlike chuck of kryptonite stuck in his hand (and its giving off a strange hue too). You remove it and Kal-El, grateful, offers you one favor, he will do anything you want just once, no matter how evil or good. What do you ask from superman? Me, i would ask him to make my own little personal fortress of solitude if i could.
Give me a lifetime supply/permanent dose of the serum he used on Lois in All-Star.
Wasn't his intellect increased from the sun radiation? I don't think a regular Superman could do that. Plus that was an Elsewords version.
If he could though, I'd totally tell him to make me a life-time supply of the serum.