A very puzzling case it is for us, too.

It's one of the most puzzling cases you've ever encountered.

In this program real-life emergency room doctors tell about their most bizarre and puzzling cases.

For the first time in this puzzling case, he heard about the man in the brown beard.

A puzzling case of milk contamination was detected in Germany.

I was the latest in a long string of specialists trying to crack open the puzzling case.

Other puzzling cases have been reported, but until the concept of quasicrystal came to be established, they were explained away or denied.

Ah, well, it was a puzzling case and of course we made full notes on the subject.

Consider, for example, the puzzling case of the ancient Germanics.

The really puzzling cases you might have made no attempts on.