These questions were fully answered in DC Comics Presents #87 by Elliot S. Maggin and Curt Swan with the introduction of Superboy-Prime. Superboy-Prime has a very confusing backstory. Born on the ...
it will switch to telling stories of Clark Kent's early years as Superboy living in Kent Farm in Smallville… and announced today at ComicsPro by DC Comics. Mark Waid has been telling earlier ...