"That depends on the question."
Good, you are working in the correct direction.
If I asked "How" would it be answered by Man? Likely, yes.
What about "Why" (if this trips you up, just ask "What reason?")
If you answer "There is no reason" Then you are left with "How" and "Why" to explain. ad infinitum.
If it is NOT "no reason" then you start from here.