No
Normally it is Dies Solis. Dies (Latin for days), Solis (Latin for Sun) - hence Sunday. So the Sun.
If it is eaten it goes to there but if it just dies then it decomposes into the ground and the energy gets passed on to a plant which another animal eats later on
When the Sun dies - that's it. There will be no rebirth.
We die.
Nothing
yes,the sun does die it gets old then it will die
Yes, long before the Sun dies we will all have passed away and there will be no more life on Earth.
No. It is not nearly massive enough. When the sun dies it will leave behind a remnant called a white dwarf.
only the two closest planets will die when the sun dies in 4 billion years
Possibly. The Sun is going to last for another 5 billion years though, so it is hard to predict that. If we are though, we will need highly sophisticated technology to survive afterward since the Sun is the source of life on Earth.
after a while we will die ourselves
look at the picture I linked, it explains and shows the steps of a sun's death.