Answer:
If a man carried my burden, he would break his back. I am not big but leave silver in my tracks. What am I?
I am in the past, never in the future. I don't exist, but have existed. I saw what you saw, and this is what I will ever see. What am I?
I am a king who’s good at measuring stuff. What am I?
So simple, that I can only point. Yet I guide men all over the world.
I have a head and a tail but my eyes can never see my tail.
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?