The first person mentioned dying is Cain killing Abel. Judging by the text Abel definitely went to Heaven.
Answer:
"...NO MAN HATH ASCENDED UP TO HEAVEN, but He that came down from heaven, even the Son of Man which is in heaven." (John 3:13)
It clearly means all priests, bishops and god workers will not enter heaven. And at the same time ordinary people who lived good lives will enter heaven.
when you die
Yes. No one that has not been forgiven and cleaned will enter heaven.
Not one person knows for sure when someone enters heaven or hell. Many do believe that one will enter as soon as they pass away. Other think they will enter when Jesus returns.
as many times as God wants a soul to enter heaven.
100000
There are numerous levels of Heaven and there is no fixed number told although many scripts in Islam realte it to being seven in number. The highest ( and the best ) one is called Firdous. The people who will not enter heaven are Jahannami.
" It's not a Secret, & He even gave us all the Direction & Instructions on How to Enter the Kingdom of Heaven..." and it's all in The Holy Bible (KJV) only
Yes.
No he cannot.
Did Peter enter the Kingdom of God?* No, not yet. He will on Judgement Day, though.
No it is not likely as Saul backslides from God.