Answer:
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
What doesn't get any wetter, no matter how much rain falls on it?
It is able to speak because it has a hard gone. You know what it is as soon as it has sung. What is it?
There is an ancient invention. Still used in some parts of the world today. That allows people to see through walls.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
Why was the cook arrested?