Gods and Immortals

 

Please read “gods” in this post as meaning “gods, goddesses, and other divine entities”; it’s just a lot to write, so I shortened it to one syllable.

Are gods immortal?
>Do gods get stronger as they gain more worshipers?
>>Do gods die if everyone stops worshiping them?

Are immortals considered gods, or are the separate?
Are immortals also indestructible?

Are either gods or immortals omnipotent?
Do either gods or immortals have memory problems due to their extended lifespans?
If a god or immortal is killed by a mortal, do the other gods and immortals do anything (assuming there are more of them)?