what's not 1+1?
The answer to what's not 1+1? is anything other than 2.
What's not equal to two? It should include addition, subtraction, multiplication, and division.
There are many expressions that are not equal to two. For example:

- 1 + 0
- 2 - 1
- 3 / 2
- 4 * 0

These are just a few examples. There are infinitely many more.
So what is the total number of solutions to my original question?