Aren't all evil entities just demons? / WWY Q&A 61

We have a tendency to gloss over many biblical aspects & over-generalize. Sure sometimes that's okay but sometimes it's not. I've had a case where an unclean spirit did not respond because it wasn't a demon when I initially tried 'up' a demon.

Doesn't that make you wonder what other type of entities are out there? Some are listed in the Bible but they may not all be as the Bible gives commands AND principles.