Before my birth I had a name, but it changed the instant I was born. And when I am no more, I will be called by my father’s name. In sum, I change my name three days in a row, yet I live but one day. Who or what am I?

It isn't a riddle--more of an aphorism or apothegm. Traditional riddles are questions.

what is the answer to this riddle? if he had seen the sawdust he wouldn't have died

why did the banana go out with the prune?

Charles is the the narrator's father and charles is the narrator's son. I've heard this riddle before in a more simple format.

It's probably about bacteria.

In days of yore I sundered peace and took mankind’s life’s lease. But spy me now through a looking-glass and to high tech labs we flee en-masse.

In days of yore I sundered peace and took mankind’s life’s lease. But spy me now through a looking-glass and to high tech labs we flee en-masse.

I surround you, you surround me, what am I ?

cannot be time, time does not actually exist, just something man has created sure it does einstein showed that time is intertwined into the fabric of space.