No, I can't answer these questions because no one can answer these questions. Even religion doesn't answer these questions. As humans we have limited knowledge about the universe, our origins, and the workings of the world around us. Lots of philosophers have studied this and come up with different names. For example, Immanuel Kant, a German philosopher, believed that the world could be divided into two categories: phenomenal and nomenal. Phenomenal things are the things that we as humans can perceive using our senses. We can feel, touch, taste, see, or smell them. Nomenal is a word that is used to describe the true nature of something. The important bit is that Kant believed we never could know the true nature of a thing because it existed outside our understanding of the world. He also believed that it was impossible to prove or disprove the theory of God because God exists in the nomenal world. Finally, Kant thought that we must continue to pursue knowledge anyway, we just have to accept that we will never have a true understanding of anything in the universe.
I study philosophy. Here's a good site for it if you're interested:
I've double checked most of the facts with first hand sources (like the actual writings of philosophers, and most seem to be accurate)