There is an even number of two digits, which can be divided by 5, and the number on its ten digits is even. How many two digits are there? What is the smallest of them?

There is an even number of two digits, which can be divided by 5, and the number on its ten digits is even. How many two digits are there? What is the smallest of them?

Can be divided by 5, indicating that the number is 0 or 5, even number of two digits indicates that the number is 0
The number on the tens is even, and the tens are 2, 4, 6 and 8
So it's 20, 40, 60, 80
The minimum is 20