I've seen questions framed in the following manner many a time:
"Why the sun shines?"
"Why hair grows?"
While the most correct way to frame these kind of questions is obviously:
"Why does the sun shine?"
"Why does hair grow?"
I was wondering if the former two sentences are grammatically sound. They are not something I would personally say, and it doesn't sound right to me (I've always thought they're wrong); but is it wrong to frame questions in that manner?