It does not exist.
Yes, it did.
God created it (Genesis ch.1).
No, Jesus plays no role in Judaism whatsoever. The Christian concept of 'messiah' doesn't exist in Judaism at all.
The concepts of 'Christ' and 'Anti-Christ' do not exist in Judaism, they're strictly Christian concepts.
The concept of 'mortal sins' doesn't exist in Judaism. In truth, Judaism barely talks about what might happen after death. However, there is a theory that the souls of those who choose to do evil throughout life, think Hitler, cease to exist after death.
Judaism teaches that everyone's soul is eternal by default. The better question to ask is when does a soul cease to exist. Although Judaism spends very little time discussing what may or may not happen when we die, one idea is that souls that choose to do great evil throughout their lives cease to exist after death.
AnswerYou should pray to whichever god you believe in and believe can help you. For many, this is the Abrahamic God of Judaism, Christianity or Judaism, but others find comfort in praying to one or more of the many other gods that are believed to exist.
Some essay topics about religion are "What are the similarities and differences between Christianity and Judaism", "Does god really exist", and "Is there an afterlife".
The Christian concept of messiah does not exist in Judaism, regardless of Jewish sect. No Jew believes that Jesus was a moshiach.
No, Jesus plays no role whatsoever in Judaism. Additionally, the concepts of 'Christ' and 'Anti-Christ' do not exist in Judaism, they're strictly Christian concepts. At most, he would have been a false prophet.
All three religions start with Abraham. He had two sons. The youngest son Isaac went and continued Judaism, from which Christianity formed. The oldest son was left out in the desert. He eventually founded the Islamic faith.