Satan, also known as the Devil or Lucifer, is as old as God and Heaven themselves: they are timeless. They always were and always will be; there was no birth of either God or Satan and there will be...
Satan was an angel ( Lucifer) before he was satan, but God kicked him out of heaven when he became too proud f his position and thought that he could overthrow God. It can, therefore, be assumed that...
Well, what ever the normal working limit is where ever you are applys for ALL jobs, so I guess it depends where you live. You could probibly start at a fairly young age (I've heard of a couple first...