Oh, so many questions! Let me see.. hum.
Mind = nothing more than a holistic illusion of one, but the agglomeration of many.
Universe expanding: it creates its own geometry s it expands. As today, the data indicates that this expansion would for infinity.
Color of objects is determinded by their ability to absrob certain wave lengths of light. So, blue objects do not absrobe blue light, they reflect it and that is why they look blue
The abundance of elements in earth is the product of the geo-biological activity. Once upon a time the atmosphere of oxygen did not have much oxygen.
Riddles, do not last forever, sooner or later sciences resolves them -like or not.