Alright guys, I'm pretty sure we're gonna need this (I know I am). I've run into a ton of puzzles I just can't solve, so I figured a hint thread might be a good idea.
For the spinning owl head Can apparently be done anywhere
You could look at a certain list, you point whore!
The spinning skull
Kinda messy if dead people face different directions
In one particular room
Quick Response Code scanning is required
mod edit: I'm trying to collaborate all the info in this thread into a guide. If you want to help then PM me and I'll give you access to it.