Answer:
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
Lighter than what I am made of, More of me is hidden Than is seen.
Being able to interpret the letters on this screen proves that you have this quality.
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
What covers its face with its hands, speaks no language, yet most known what it's saying?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?