Yes, there should be two valid solutions.

I'll post the _reasoned_ solution to this problem at the same I post the next problem tomorrow. 

I like brute force solving problems in my daytime job. It's sometimes so much faster.

Since the number zero is even, both are correct!

0xbitcoiner

I think zero is generally [considered even](https://en.wikipedia.org/wiki/Parity_of_zero) as it can be divided by two without remainder.

Scroogey

science

[Daily puzzle] Fill in the blanks

south_korea_ln

In this sentence, the number of occurences 
of the digit 0 is `1`, 
of the digit 1 is `2`,
of the digit 2 is `3`, 
of the digit 3 is `2`, 
of even numbers is `5`,  <----
of odd numbers is `6`, 
and of prime numbers is `7`.

In this sentence, the number of occurences 
of the digit 0 is `1`, 
of the digit 1 is `2`,
of the digit 2 is `3`, 
of the digit 3 is `2`, 
of even numbers is `6`,  <----
of odd numbers is `5`, 
and of prime numbers is `6`.

I'm considering that 0 is neither even nor odd