Thanks for commenting. I quess the number puzzle was a bit unclear, but I created this walkthrough which might help:
SPOILER!!!
- Pick a rock from the table and throw it at the glass next to it. Pull the lever behind the glass to open a pathway to a secret room with a hint for the number puzzle.
- The correct numbers for the floor cover are determined by adding the two numbers by their side. For example 1 + 4 = 5, 4 + 3 = 7, 3 + 1 = 4 and so on...
- As for the computer password, there's a riddle written on a wall under the floor grill. The answer is a 10 letter word.