no there is no hell, what there is is two different kinds of death.
Death number one is the one you get resurrected, during the resurrection of Judgement day, Death number two is death which you go into non-existance and never get resurrected, this goes for all those who are the worst of the sinners, People like Adam and eve, who had already given up perfect life, they wont return. There is no eternal hell, the lake of fire is death, but no torture, you cease to exist.
Which I know sounds horrible, but it is better than burning in eternal torture forever.
Plus at the resurrection, both the righteous and unrighteous will be resurrected. to give them all a chance to know who Jehovah God is and a chance for perfect life.