Answer:
I am always running but I never get tired or hot. What am I?
I am one small little piece of paper yet sometimes hold lots of value. I am all you need to get in to big events but will cost you. I am an important part of travel. And if lost you're not coming.
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
I am the place where yesterday is always before today. What am I?
I cannot be other than what I am, until the man who made me dies. Power and glory will fall to me, only when he last closes his eyes.
Give it food and it will live, give it water and it will die.