Office calculator clues? Save game?

[CarrotNose]

Hi, I have 2 questions:
1) What is/are the clue(s) for the calculator puzzle? I didn't find anything that I could link to that puzzle, only the sheet with colors and values on them, but because it's only 2 digits, I decided to brute force it, simply because I didn't find the other clue(s)

2) While loading, the game says that we can save via the pause menu, but for me the only things in the pause menu, are "Return", "Settings" and "Main menu"

And an extra question: what are the steps that I have to do with the sliding puzzle in the attic? I know what I have to do and how it should look like (at least, I think I know it. low outside and high middle), but I am terrible in that kind of puzzles. The similar one in the office, I got lucky with that one, but the attic one I've already spent a lot of time

[Tgs]

Calculator puzzle: look for ligths in bathroom
Green x Red - Blue