Should Thought Provoking Be Hyphenated?

But we mean thought as a noun linked to provoking to form a compound adjective. Thus we must hyphenate: The article was thought-provoking.

Should thought process be hyphenated?

It depends on how you use it... if it's preceding the word it modifies, then it should be hyphenated: He paused for a bit, and then gave a well-thought-out answer. However, if it follows the word it modifies, no hyphenation is necessary: He paused for a bit, wanting to make sure his answer was well thought out.

Should interest bearing be hyphenated?

Yes. Adjective. Always hyphenate compound adjectives consisting of a noun and a participle: award-winning, cost-effective, custom-created, interest-bearing, market-tested, tailor-made, tax-sheltered, number-crunching, Windows-based.