Answer:
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
My teeth help me suck.
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I wonβt break if you throw me off from the highest building but I will break if you place me in the ocean.
I can climb mountains, cross streams, handle hundreds of feet each day, yet I never move. What am I?
I flow from the Homerβs mouth when he sees doughnuts.