How did that turn out?
How did it come about?
How did it come about?
How does that happen?
Why did this kind of thing happen?
Why did something like that happen?
How did all this come about?
Where will all this lead?
How did that go?
How did such a thing come about?
How was this made?
What in the world is the matter?
これはどうなってますか?
Why does this kind of thing happen?
What then?