Did you get it right?
Count only the real cows and calves, not the two flat cow pictures painted on the milk cans.

The Answer
The correct answer is: 13 real cows and calves.
Here is why
- Three real cattle stand in the left group.
- Six appear around the center, trough, and foreground.
- Four more occupy the right group.
- Three plus six plus four gives 13. The two milk-can pictures do not count.
Why people miss it
Several cattle overlap one another, while the painted can pictures resemble small side-view cows.
What answer did you get before checking?