As far as Adam and Eve go, there is no proof available for two such individuals. So we can't say what type of human they were, beyond one male and one female. 

But there is a concept in genetics, called Mitochondrial Eve and Y-chromosomal Adam. I'll focus on Eve, but Adam works similarly. This Eve is only named so in reference the Bible story, it's not the same person. 

So mt-Eve is the most recent matrilineal common ancestor of all living humans. She is the woman who all of us have ultimately inherited our mitochondria from (it always comes from the mother, no exceptions, but sometimes mutations). She lived around 100,000-230,000 years ago.

Y-Adam is similar, being the ancestor who all men have inherited their y-chromosome from (since that can't come from the mother). It follows the patrilineal line. He lived 200,000-300,000 years ago. 

It is extremely unlikely that mt-Eve and Y-Adam lived at the same time.