For the best experience, don't look up the answers!!
Yes, the puzzles in the game can be tricky and annoying at times, but looing up the answers will just spoil the experience. I accidentally picked up a hint or two here or there and that ended up getting me all the way through the Mechanical Age in <5 minutes. Experience = ruined. But if you try at it, the frustration will be converted into joy that you were able to figure it out.