I need Puzzle and Ideas for my world

Im making a puzzle world for my friend to complete. I added a few medieval mods bc I wanted to use the decor. But I wanted some more ideas for what I should do. I have an Ice race game (press the button. Door opens and you need to race to enter the door before it closes). I also have a monster maze (1 zombie with netherite everything and he's inside a maze. Find the key which is a lever then find the door which is an iron door.) Anyone got any more complex ideas or cool mini games for this. I can add more mods. Its 1.20.1