In response to why you are an agnostic, one of our astute members mentioned the following:
I prefer the vast expanses of Grey-Area to play with

This tends to be a common trait among agnostics, and perhaps it stems from having intellectual humility. To always see everything in black-and-white seems to go with those who are certain on a lot of matters whereas agnostics are not as much.

In this discussion, I wanted to make a list about all of the matters that agnostics find themselves diving into the gray areas.
 
I often find myself not accepting a theory or view as either completely right or completely wrong. I often find some weakness or area of uncertainty that keeps me from accepting a view fully.

I'll add more examples as they come to mind.
 
What do agnostics regard as non-grey areas?
I accept that there are non-grey areas, but on average, I tend to see more gray areas than other thinkers (e.g. atheists and Christians).

In general, I can say that anything that can be objectively determined or supported with logic and evidence, then I can accept it as a non-gray area. Some examples would be:

1. I exist.
2. Certain things can cause mental and physical harm.
3. Joe Biden is the current U.S. president
...

For anything else, I would have to go on a case-by-case basis.