Answer:
It is a popular afterlife destination where you want to send people when you're mad at them.
What has keys but no locks, Space but no room, You can enter but you can’t exit.
How many people are dead in a standard grave yard?
It is hate and has hate in it, but it isn’t hate.
Not a comb or a brush but makes the hair feel plush. What is it?
What is often on the ground getting stepped on by others, but you don’t have to wash it because it never get dirty, in fact you couldn’t wash it even if you tried?