In the comics, Tony Stark's age can vary depending on the specific storyline and continuity. But generally, he's depicted as an adult in his 40s or 50s.
Sure was. In the comic books, Tony Stark had a significant connection to War Machine. His innovations and resources played a crucial role in the creation and development of the War Machine character.
In certain comic arcs, Tony Stark's fate includes death. But comic book universes are complex and can bring characters back or have alternate timelines where he survives.