Yes
No. Pronounce it as inCREDible.
It does not have to be capitilized.
The word "rhino" should not be capitalized unless it is at the beginning of a sentence or part of a proper noun like a specific species or organization name.
Nope. :)
No, not unless you are referring to an organization.
Yes, capitalize "judge" in the middle of a sentence if it is part of a proper noun or title like "Word Judge" in this case.
No it shouldn't be capitalized.
He was very noble. Noble price is very hard to get.
No, not unless it is a specific college..ie Manchester College, or if it begins the sentence.
Yes, "Epinephrine" should be capitalized as it is a proper noun referring to a specific medication or hormone.
No, the word astronaut is not capitalized in that sentence.