Braved

It would certainly sound odd.

no. period.

Seeing as how 'brave' is a verb, as well as an adjective, I can't see that it is impossible. But right now I can't imagine a context.

Two dictionaries show this as an archaic use meaning 'to make a brave show'.

He braved the weather. Meaning he went out in bad weather, knowing it would be bad.

I've never heard it used, even archaically, for stating something.

Could have occurred, but I've not seen it, and if you want to be current, I'd suggest using another word.

The verb "to brave" is transitive and therefore requires one or more objects. You brave something - the rain, enemy fire, the opinion of others.

Yeah.

That is, no.