Philosophical Discussion Concering Death

Greetings, -Questions- i) is Death great equalizer for all humans? In other words, are humans equal before death? ii) What happens when we die? At least scientifically it is believed that according to the law of conservation of mass and energy, the states undergo changes, but all things still remain within universe in a different forms. iii) How should we die? In other words, what is a good death? iv) Should we choose to live forever if there was a possibility? Or on the contrary, is neverdying actually misfortune? ***