Here is the full list of all 20 Cube Airport - there are Puzzle achievements.
Wait for it on level 19
Finish Level 40
Finish Level 37
Finish Level 36
Finish Level 35
Wait for it on level 27
Finish Level 30
Finish Level 25
Take a ferry
Finish Level 20
Wait for it on level 32
Take the teleport
Finish Level 15
Reach Level 14
Wait for it on level 13
Finish Level 10
Reach Level 7
Reach Level 2
Finish Level 1
Wrong place