Superman flies at Class 3000 speed, or at about the speed of light.
Journalism * Writing
The Justice League of America * The Legion of Super-Heroes
When the planet Krypton exploded, Science Council member Jor-El was able to send his infant son to safety in a prototype spaceship Jor-El began developing when he began to suspect Krypton's imminent demise. Baby Kal-El came to Earth, and on crash-landing was found by Jonathan and Martha Kent, who adopted him shortly thereafter.
At the point where Clark had gained control over his superhuman abilities, he began a career as a costumed hero called Superboy. Shortly thereafter, three time travellers appeared in Smallville, introduced themselves as members of a far future Legion of Super-Heroes, and invited him to visit their century and join their club. Superboy did so, and continued to make periodic journeys for several years to let loose among other super-powered young people.
Jonathan and Martha Kent died soon after Clark graduated from high school. He had them buried in his backyard, and boarded up the house in Smallville where he grew up. He enrolled in Metropolis University, and received a degree in Journalism.
Clark Kent applied for a reporter's job at the Daily Planet, which was the leading newspaper in the city of Metropolis. Editor Perry White told him that he had to bring back a spectacular story. So, he wrote a story about Superman's first public appearance in Metropolis, scooping veteran reporter Lois Lane. He got the job, and continued a friendly rivalry, as well as an on-again-off-again romance, with Lois Lane for several years.
Eventually, Inter-Gang agent Morgan Edge gained control of Galaxy Communications, which owned the Daily Planet. He transferred Clark Kent to station WGBS, where he anchors the nightly 6 o'clock news.