Is this number zero?
No, it's not.
How many boys do you see?
Zero boys.
How many apples do you see?
zero apples
How many cars do you see?
One car.
Is this number one?
Yes, it is.
What is this number?
Number zero.
Where is number one?
The brown one.
How many cats do you see?
One cat
Is this number one?
No, it's not
How many dogs do you see?
One dog.