Answer:
A circle of stones, never in rows. Stacked one on the other, mystery it sows. What is it?
There are 30 cows and 28 chickens. How many didn't?
What is the freedom of birds and the pen of old men?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
I'm not man's best friend, I'm their enemy, I can mark your end, yet you do not see me, I am very small, but very tough, If you have me, then you have it rough.
What do angels sing in the shower?