Sukuna does die in the manga. The way it happens is quite dramatic and ties in with many other elements of the story, adding depth and tension to the overall narrative.
No. Ryomen Sukuna is a fictional character from Japanese mythology and modern manga/anime. He doesn't have a basis in a true historical event or person.
Nope. Ryomen Sukuna has no basis in reality. It's a product of the creative minds of the writers and illustrators who designed a captivating fictional character for the enjoyment of the audience.
There were many animes similar to the Soul of the Halberd, such as Sword God's Domain, Attack of the Giant, Blade of the Destroyer, Gate of the Fate Stone, and so on. These animes all had a certain fantasy element, telling the story of the protagonist's adventures in different worlds and fields. At the same time, there were also many excellent anime works such as Your Name, Qianxun, Totoro, and so on. They all had their own unique charm.
I'm not sure what kind of anime you're referring to. However, Spirit Cage was an original Chinese animation that told the story of a supernatural world. In addition, there were many other types of anime such as Japanese anime and Korean anime. Can you provide more information? This way, I can better answer your question.
In the manga, Sukuna doesn't possess all 20 fingers. There are specific story arcs and events where his finger count changes based on the plot developments.