When Is Why Not a Question?
It's a "Non-Standard Question" (Whatever They Actually Mean by That) in as Much as It Starts "Why Not", Which Would Make It into a Rhetorical Question — One...
It's a "non-standard question" (whatever they actually mean by that) in as much as it starts "Why not", which would make it into a rhetorical question — one which either doesn't actually require an answer or to which you will supply the answer.
Is there a question mark after why not?
Use a question mark after "Why not" irrespective of what it suggests, especially on exams and grammar tests. That way you can't go wrong.
Is Why considered a question?
Why as a question word
We can use why to ask about reasons and explanations: ... We can use why in indirect questions: He asked me why I wanted to leave the job.
Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.
