only if you are playing on hardcore mode. otherwise you just respawn
No, everything you placed before you died will still be there. You just respawn, either at your original spawn point or the last place you slept.
yes but you might spawn in a differant part in the world, it would be a good idea to write down the coordinates or sleep in a bed there so that you can get your way back.
t changes depending in what die you put into the star when you made it
No. If they die they die.
Yes
By hitting it or drowning it.
yess i think that it should be because minecraft is my life and that when i die i will spawn in minecraft. and hopefully live happily ever after :) i love minecrfat
die, then hit "respawn"
Yes.
Not possible as of 1.8.1.
get a life mate
no it doeset