The three Malfoys, for example, are some of the deatheaters that survived.
There are quite a few deatheaters where their fate is not mentioned. It is insinuated though that either they are caught while still at the Battle of Hogwarts, or they are hunted down in the aftermath of the war.
Impossible to know.
The order of the Phoenix
You have to throw different curses at the death eaters
Is this a serious question? Voldemort and the Death Eaters.
Voldemort, the Death Eaters and the Ministry of Magic.
Voldemort and his legion of Death Eaters are antagonists.
Flur and Bill's wedding gets interrupted by Death Eaters
That was the Death Eater base.
The death eaters crashed Bill and Fleur's wedding in the deathly hallows.
Yes, she helps in the last battle. She throws crystal balls at the death eaters.
A werewolf in Harry Potter. He is the person who bit Remus and he unofficially joins the Death Eaters in Deathly Hallows.
Yes, he is murdered by Death Eaters during the final battle.