I have no clue so don't listen to me cause this is a guess 15 34 23 11 69 67
I believe there are 2 positive three-digit perfect cube numbers, that are even.
149 of them.
102 = 100 which is the first possible three digit number that is a perfect square. 312 = 961 which is the last possible three digit number that is a perfect square. So there are 22 three digit positive numbers that are perfect squares.
An infinite number if you can use positive and negative numbers.
90
90
There are only 999 three digit whole numbers.
A lot
4,000 even numbers, 4,000 odd numbers.
There are no three didgit numbers but there are 63 three digit numbers.
There are 294 such numbers.
There are 90 palindromic numbers.