It's always almost impossible for me to hear the "mü"... Is it like this in real spoken Turkish too?
"Şu makaleyi gördün mü?" Translation: Have you seen that article?
Did you see that article? - Correct.
The hints indicate that makale also means "paper." In the medical field we commonly use paper to refer to an article reporting the results of some experimental study or another. Not going to try it myself, but I could bet that "Have you seen that paper" would work too.
I like - "what if?"
I will try your other answer as revision later on. I'm sure it will be correct.