Headless Nick is solvable.
Another Crazed Mage is solvable as far as I recall. EDIT: The hidden switch can't be interacted with. Stepping off the pressure plate does nothing. It would appear this quest is broken at the moment.
Bo Bertia I'm unsure of. I've heard it is, but haven't completed it personally.
Tom is solvable:
In the cave with Arhu's Failed Experiment there is a corpse. Look at it.
The other's aren't solvable. The Church and Braccus WERE solvable through an exploit in the previous build but not this build.
