Answer:
What is so delicate that even mentioning it breaks it?
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
How can you throw a ball as hard as you can, to only have it come back to you, even if it doesnβt bounce off anything?
If you are unsure how to use one then just ask a flight attendant.
What goes up but never goes down?
People take me on walks and I run and have fun. What am I?