Here is the full list of all 10 Mahjong achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Clear 1 Level
Clear 5 Levels
Clear 10 Levels
Clear 15 Levels
Clear 20 Levels
Clear 30 Levels
Clear 40 Levels
Clear 50 Levels
Clear 60 Levels
Clear 70 Levels