Genesis: Controversy, concerns, and questions

Why is there darkness before the light?

Why is day 2 not called good?

Why are there 3 days before the sun shows up?

Why is the whale specifically mentioned on day 5 in some versions?

Were Adam and Eve the only humans?

Did Adam have a belly button?

If earth so good why a garden?

Where was the garden located?

Did Eve actually have a conversation with a snake?

What was the forbidden fruit?

Where did Cain get his wife?

Who was Cain scared of?

Why did humanity live so long before the flood?

Why did Enoch not die?

Who were the sons of God?

Who were the giants?

How did Noah fit 2 of all the animals on the ark?

Did it really flood the whole earth?