There are 30 cows in a field 28 chickens. How many didn't?

This is a classic wordplay riddle! When spoken aloud, the phrase “30 cows in a field, 28 chickens” sounds like “30 cows in a field, 20 ate chickens.”

So, if 20 cows ate chickens, the remaining cows are:

30 - 20 = 10 cows that didn’t eat chickens.

Answer: 10 cows didn't.