The real mystery is how it gets anything done at all.

The real mystery is why now - and not much earlier.

The only real mystery here is why she doesn't dump it on his head.

I have a feeling he has a real mystery for us to work on.

How they ever came by that figure is a real mystery.

And here's where we get to one real mystery of the case.

The real mystery is how no one on the committee that counted felt the same way.

I'm sure glad I found out how the head works; it was a real mystery.

But the real mystery, he said, is here in Washington.

But if she's telling the truth, we've got a real, live mystery on our hands.