Answer:
I have four fingers and a thumb, but I'm not living. What am I?
I am the thing that is used to make your weight. What am I?
I am always running but I never get tired or hot. What am I?
I can be swallowed, but I can also swallow you. What am I?
I help boats park
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?