How much dirt is in a hole that is 4 ft deep, and 8 inches in diameter? 
There is no dirt in a hole. 
Very Good! Try this one.
What’s the greatest worldwide use of cowhide?
I would have to say…to protect a cow’s butt?
You’re closer than you think. Would you like the answer?
Sure…hook me up
The answer is, “to hold cows together”.
Here’s one more.
What’s colorless, and weightless, but if you put it into a barrel, the barrel would become lighter?
A hole!