Not that I know of. Keanu's work has mainly been in other areas of entertainment and there haven't been any publicized talks with DC Comics.
DC Comics hasn't faced bankruptcy. Their diverse range of characters and successful media adaptations have contributed to their financial stability.
Definitely not. Spider-Man is firmly established in the Marvel Comics universe. DC Comics has its distinct characters and storylines, and Spider-Man has never made an appearance within them. It's a clear divide between the two comic publishing houses.
It's hard to give an exact number. DC has been in the business for a long time and has produced a vast amount of comics over the years.
No, Stan Lee has never worked for DC Comics. He's mainly associated with Marvel Comics and made significant contributions there.
Spider-Man is strictly a Marvel property. DC Comics has its own roster of characters, and Spider-Man is not among them. DC and Marvel are separate comic universes, and characters don't crossover like that.
Not as far as I know. Venom is mainly associated with Marvel Comics, not DC.
DC Comics has had quite a few crises over the years. It's hard to give an exact number.
Yes, sometimes. But it depends on specific comic storylines and interpretations.
No, X-Men has always been associated with Marvel Comics, not DC Comics.
Not that I know of. I haven't come across any mention of a bat dragon in DC Comics.