Not alone, no.
No.
No you cannot kill hades because he is a god but he can fade away if he is not remembered:-(
No, he did not.
No.
No, but hades did kidnap Demeter's daughter.
he killed
yes it depends
I do not believe he hated anyone.
Yes
Hades the Greek God can not be compared to anyone alive: as no one is the immortal King of the Underworld.
The Helm of Darkness. Anyone who wears it will become invisible. This helmet was made for Hades by the Cyclops.
The bident is supposedly black. The bident was never used by anyone other than Hades