Remove my first letter and I am in Repeat that letter and I become paint Remove the first and last letters and I am me Still unsure? THINK, but subtract two letters

I’m not a food, but I come with every bite. I can be burned without flame or light. I’m measured in numbers, not in spoons. What am I?

I'm not the whole, a piece or part. Just one share, of cake or tart. Just a sliver, Of pie on chart. Why your one downvote, is just a little wet fart.

Neurons of a beast unliving, Or with razors, zinc and steel. Gold bonded: either nothing or something my host comes alive but neither thinks nor feels.

The first five are something you get right away; if you drop the last two, I become the only adjective and noun of this word. The last four are a noun of metric fame, a logical unit with a Greek base for mass. I am a place to post your photos, where likes and loves rule the land.