Yes
It should be hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated: well-liked.
It should be hyphenated when it's an adjective.
No. Well above is not hyphenated.
"Well-maintained" should be hyphenated when it is used as a compound adjective before a noun. For example, you would say "the well-maintained garden." However, when it follows the noun, it should be written as two separate words, such as "the garden is well maintained."
Yes, it should be hyphenated.
Yes it should be hyphenated.
No, well above average is not hyphenated.
It should be hyphenated when it is being used as an adjective.
Well-to-do is a hyphenated word. The direction west-northwest is hyphenated.
Yes, well-being is a hyphenated word.