I would bet the farm that the writers of the Bible absolutely and unequivocally believed in a literal heaven and hell.
...annnnnnd here comes the literal interpretation of something written in another language and translated to English. Idioms, however, don't translate.
They believed that Noah built a cruise ship with no power tools,
Who knows what tools he used? Power tools maybe?
And what a lousy 'cruise ship'. No engines, no sails, and a ship stuffed with but a few people and a lot of animals. No, this is NOT the first class section.
People still talk to animals. Animals sometimes even listen to them. Haven't you ever seen someone train a dog to come when called, for example?
While people still talk to bushes, it's a rather boring one sided conversation.
There are Christians today who still believe the Bible is the literal and inerrant word of God, despite a laundry list of contradictions, errors and inconsistencies contained within.
Consider: These 'errors' are often the result of translation problems, and people taking the English working literally, as if it was the original language, and the Bible was some kind of formal legalese.
There are books dedicated to explaining away all of the "oopsies" in the Bible and, no matter how silly the explanations, if you want to believe the Bible left the hands of god and floated down from heaven, those explanations do the job.
It didn't. It was written by various prophets of God, each according to their own writing style in in their own language. Later, portions of the Bible was translated to English (not the idioms, which don't translate), and some has been changed or mistranslated.
There are fewer and fewer of those dogmatic Christians today.
Trying to speak for all Christians now? Omniscience fallacy.
Polls show nothing. They are random number generators, nothing more.
that more believe in a literal heaven than a literal hell, which is odd because, again, the Bible writers absolutely believed in them...
Again, you are taking the English version as legalese. That's a mistake.
of course, they also buried animals under buildings for good luck and couldn't explain where the sun went at night.
There is no council from God or Jesus Christ to bury animals under buildings. The Bible doesn't describe the Sun or the Moon, other than that they exist.
Egyptians, however, DID describe as the Sun passing beneath the Earth (what they called the Underworld)...a remarkably accurate description, considering the point of view they had (a terracentric system). You should study the religion of Ra.
OTOH, there are Christians who acknowledge the Bible is anything but inerrant or divine, was written by man, is full of errors and made up stories but they still believe that the "God" of the Bible exists.
There is no proof possible that any god or gods exist. There is no proof possible that no god or gods exist. All you are showing is that you belong to the Church of No God, a fundamentalist style religion.
The Bible is clear that you have to believe in the Christian God to be saved,
Satan believes Jesus Christ exists. Satan believes God exists. After all, he tried to tempt both of them. Does this mean Satan is saved?
Again mistranslations and failure of idioms to translate. The word 'hell' comes from Norse mythology.
and God is going to return one day to judge mankind.
He judges mankind all the time. He doesn't have to wait for a particular day to do that!
Those who don't pass will be condemned to the eternal lake of fire.
Quite probably a figure of speech. The 'lake of fire' could very well be a description of the misery of the condemned, rather than a physical place.