Aren't they supposed to set you free if you survive a HANGING???

Uhh no actually. Which is why the death sentence usually reads "You are to hang by the neck until dead."

There have been some great old stories written with that plot device in mind, most notably, the quaint old French custom, if you were sentenced to die at the Guillotine, but your EXECUTIONER died the day you were to be excuted, all prisoners scheduled to die that day got to go free. There was a great old TV show in the States which used this as its plot for one episode, Thrilleror an old Twilight Zone, I forget which.

A vile murderer who's nonetheless a real charmer with the ladies is sentenced to die by the Guillotine. The killer's girlfriend cozies up to the executioner, a lonely single guy, poisons him, then sends him out to do his job, as the killer doesn't go free if the executioner dies at home, and of course it has to be natural causes, otherwise excutioners would be dropping left and right. The rest of the episode flips back and forth between prepping the killer to meet his fate and the executioner's agonizing walk thru Paris, trying to do his job. JUST as he reaches the Guillotine, and reaches for the wood bar which releases the blade, he dies. The Killer screams, "He's dead!! Im free! Free, do you hear?? BAH aha ahhah!!" A doctor, there to take the killer's executed body away, raises the executioners arm to take his pulse. Finding none, he lets go of the arm.... which falls onto the wood bar and releases the blade. THUNK. The executioner did his duty after all.

But no the answer to your question is, a death sentence by hanging is not a lottery. You are left in the noose until you are dead. And sometimes, just left there. Remember the pirate warning Johnny Depp sees hanging from the rocks in the first Pirates of the Caribbean?

And to the guy above me, but if the guy is legally dead, he has no legal rights anymore. He's dead. Someone could walk up and chop his head off at a later date and the most he could be charged with is "desecration of a corpse". He could be beaten, shot, burned alive, etc. No thanks leave me dead please.

Yes this was true back in the day. Since then they've changed the wording, "hang by the neck UNTIL dead". This leaves very little room for survival.

I heard that

this is law in our country if you survive this you will set free after that.

This has happened in the past, for example, experiments involving artificial respiration were carried out using people who had been hanged. (As far as the law was concerned, they had been "hanged by the neck until dead".) There was a case in Adelaide, in the early days of settlement when they tried to hang a man from a tree. The branches kept on breaking, and so, when the third branch broke, they decided that the man was meant to live, and gave up. (They obviously didn't know that Australian native trees have a habit of dropping branches, particularly in dry weather. Later, some species of trees were referred to as "widowmakers", because of the dangers of camping under them.)

By and large, I think most current systems would keep on trying until the victim was dead, however long that takes. However, if the victim were to resurrect after being declared dead, then I think his/her lawyer would have a good case for arguing that his/her client has served their sentence, and should be freed.

I think this might be an old rule from western movies made between 1930 - 1969.

They will sack the hangman who will then kill you for his unemployment

No one has ever survived a hanging so we will never know.....

if you survive from hanging, hang until you die.

Yes, and also if you kill a cop, they will have to be your slave in the afterlife