@TEDDY-25
It depends on the achievement! Although... with this game, I am far more lenient towards riddles than descriptions. I think a riddle, along with the picture of the achievement, would be sufficient enough to decipher what you need to do in order to get it.
OR, what you could do (as others have probably suggested) is make them scale. That's definitely not the correct term...
What I mean is that the more "basic" achievements are more descriptive and detailed in nature. Easy to figure out. But the more difficult achievements are riddles, ones that you have to solve in order to actually figure out what you need to to in order to get the achievement.
I feel like this would actually make people feel like they've earned the achievement, because in order to get it they have to solve it first and then they still have to do it. Ofcourse there would be guides on the internet telling you what to do, but I know I (and many others) would love to try and figure out these difficult achievements.
For example, my favourite achievement in-game was "Little Rocket Man" in Half Life 2 - Episode 2. As the achievement only tells you to send "the" garden gnome into space. But the game doesn't tell you where to find Mr Gnome, and unless you've played it before you wouldn't know that you would have to bring it with you through the entire game. Those kind of vague, yet descriptive, achievements could be a huge amount of fun in this game.