Problems with the bible and the biblical god

1: if he was all loving hell shouldn't exist.

2:if he was omnipotent he could have prevented lucifers rise and fall.

3: if the biblical god was all loving then why doesn't he forgive lucifer.

4: if god was omnipotent then why would he let the serpent tempt Adam and eve?

5: why didnt he just put a cage or structure in the way of the tree so Adam and eve wouldn't get the fruit.

6: the many contradictions in the bible.