Answer:
I pass before the sun, yet make no shadow. I'm all around you, but you cannot see me. What am I?
I help boats park
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
You can drop me from the tallest building and I’ll be fine, but if you drop me in water I die. What am I?
Digital white-out.
When is it bad luck to see a black cat?