WHAT CAN I DO WITH THE BOTTLES IN THE PANTRY?

There are some marks etched in the racks around them.

The marks seem to define a square of 3x3.

And there is the number 60 in 3 different positions.

Tap one bottle and then another one to have them swap positions. (Some of the numbered bottles don't move. They're already in the correct position.)

You need to arrange the bottles so that each row, column and diagonal in the 3x3 square totals 60.

(SOLUTION FOLLOWS)

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An example of a correct configuration is:

26 12 22

16 20 24

18 28 14

Tap the secret drawer that opened in the desk to take a tiny key.