First Language Was ...

What language was spoken by Adam and Eve?
God and Adam?
Eve and Serpent?

I belive that it was Aramaic.

I don't know what language they spoke, but it wasn't Aramaic. That only developed a few hundred years before Jesus was born. People like David and Solomon spoke ancient Hebrew, which was among the first languages to develop an alphabet.

I don't think they had a spoken language at that time, languages in general are relatively new thing compared to human history.

True enough. I don't actually believe in Adam and Eve and the Bible. I probably should have specified that. It's like the idea that Moses wrote the first five books of the Bible. Even if Moses existed, there wasn't a Hebrew alphabet that early.

Ive always wondered how Moses was able to describe his own death if he actually wrote the books?

don't know maybe he had a dream how he is going to die, LOL
or simply someone later added details of his death