Superman's speed in comics varies depending on the storyline and the writer. Generally, he can fly at supersonic speeds and even approach the speed of light in some cases. His speed is often used to save the day and overcome impossible odds.
Superman comics originated in the 1930s and have had a significant presence in the comic book world ever since. That makes them over 90 years old. They've gone through various iterations and storylines over the decades.
The number of Superman comics is quite large. It depends on different series, special editions, and reprints. But it's safe to say there are hundreds, if not thousands.
Superman's revival in the comics often involves a confluence of elements. It could be a result of a combination of his own latent powers, the efforts of his allies, or even a manipulation of the fabric of reality. The details change based on the creative direction of the particular comic.
Superman's age can vary depending on the comic storyline and continuity. Sometimes he's depicted as relatively young, while in others he's been around for a long time.