Here is the full list of all 20 Cube Airport - there are Puzzle achievements.
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
Finish Level 30
Finish Level 35
Finish Level 36
Finish Level 37
Finish Level 40
Wait for it on level 19
Wait for it on level 27