Where...?
that's the place
Why...?
Your reason right there!
Who...?
It's that someone.
What...?
I wonder too.
What...?
It's the action!
How...?
That's the situation!
When...?
That's the time!
Who...?
It's related to someone!
How...?
I see!
When...?
You need to tell me the time!
Why...?
Yes, that's why.