Don't worry, no body does.

No "who" gave us the molecule. The molecule emerged on its own.

No idea.

No idea and sure, why not?

Maybe he was using DMT.    The Buddha is not a personality nor a person, as such, but a manifest infinite consciousness. The Buddha is all around you. The Buddha is within you.

Good and Evil are matters of interpretation, having in themselves, no basis in reality.

Who is asking?

The mere fact that you can even ask or even contemplate realness or an absence of realness, necessitates that you are more real than what can be observed to be real. Real in other words, is something (so to speak) that must occur within you, not the other way around. You cannot know yourself as real however, as that would require that you have manifest yourself, within yourself, which is absurd.