The heart question just seemed too powerful and I ended up wasting too much energy on it and not having enough for the last few haha. Ended up with 7/10
I appreciate that you added a bit more thought to the 20-questions style of game with the costs. My feedback would to go further with that - maybe start the player off with some information about each object that would make some of the cheaper options feel situationally more valuable, rather than the same strategy each time.
Good job