Nice twist on the original puzzle, the way you can ask questions in this game is really clever. (We actually had a similar idea for our game, you might wanna try it out :D)
I feel like most of the puzzles can simply be resolved by asking "Are you wearing a hat" to a guy wearing a hat or something similar, that seems a bit too easy.
Also, the level with the 3 veritas knights was confusing me: At least one of them is lying, so why are they all veritas?
Ah and the one with the horses: It says one of them is lying and the other is truthful. Then why does the usual solution to the 2 guards puzzle not work here?
Finally, the UI looked very small on my 4K screen, a fullscreen option and having the UI scale with the screen size would be nice.