(humorous) Synonym of how the tables have turned

(colloquial) Alternative form of how do you do

(colloquial) Alternative form of how about

Synonym of what about

(idiomatic) An informal greeting, not requiring a literal response. In form a question, and thus followed by a question mark. Typical responses include:

(UK, slang, obsolete) you what? huh?

(interrogative) What amount or quantity (of something stated or implied). / (specifically, when referring to the cost of an item) What amount of money.

(interrogative) To what degree; to what extent.

unspecified number / what number

The knowledge and skill to be able to (do something correctly).