Good Riddles

Question: What has been found to have no beginning, middle or end; it eats away everything, but makes life for us all?

Question: I have the power to turn day into night And night into day I am worshiped by many Even when I'm quartered and halved. Look but you shall not find me when I am new.

Question: What has a lot to say but can't be heard because it can't speak one single word?

Question: Why couldn't the skinny man eat all of his fat burger?

Question: What goes back and forth constantly, but never in a straight line?