Which word do the most important questions start with and Why?

Question

do
have
how
if
is
may
should
what
when
where
which
who
why
would

Answer 1

I think questions that start with "do" are the most important, because they are usually followed by DO YOU "think", "know", "see", "feel, etc. which makes the person draw upon their own experiences that have already happened.

Answer 2

"What" is the most important beginning. What do you think? What did you do? What do you want? What was that? What were you doing...? What time is it? What were you thinking?! and the most famous: What are we fighting for?

Answer 3

Mine all vary