Okay. I can't remember much about this game. I played it in school in the early 2000's. It was an elementary PC game. I believe it was mostly about math, but I vaguely remember a metronome and a piano somewhere in there. I do remember it being sort of creepy, almost like a Halloween game. I remember clicking on a tower to go inside and there, you had to grow a certain amount of crops to make a potion or something. You had to figure out how many seeds to plant and how much water and sunlight to give to yield the correct number of fruit or whatever. And then I believe if you went through the woods, you found these three witches and you had to measure the correct ingredients for a potion... And there was a labyrinth, but I don't remember what was inside. And I know you had to beat a certain amount of the games to unlock the door to this house on a hill. Although, I don't remember what was inside. But every time to made it in, you ended up back outside and had to complete more games (they were the same games but harder than before) again. And I think as you completed the games, a jewel or something would light up on the door.. And it was always night time and it was pretty much storming the entire time.
And there was another pc game I played in school. It was a mansion, and the person who owned it was a cat. And every time you found all the clues, you would get a picture of that mansion in your hall.. I'm wanting to say it was "reading mansion" or something g like that.