Hey guys I really need help remembering a game I played many years ago that I can't remember the name of. I played it on PC in the late 90's / early 00's, it was on a demo disc I think and was a point and click game very similar to the picture. It had various different levels and a couple of rooms that were flooded and iron/submarine type doors with cranks on them. There were various puzzles such as simon says and the one where you have to move 4 blocks across 3 stands keeping the smallest on top and largest on the bottom (Towers on Hanoi).

Looked through Wikipedia's list of point and click games to no avail. Don't remember a whole lot else.