It was one of the puzzling things about the whole business.

As a child, growing up in the North, it was a puzzling thing.

The only really puzzling thing about the 3D map was what looked like a wall that appeared to cut the city in two.

The puzzling thing is that such promotions don't happen more often.

There were too many puzzling things here, they did not fit together well.

The puzzling thing was why they had waited until tonight.

But the most puzzling thing was that Pills took six months to get home.

Everything makes sense, in a perverse way, except for one puzzling thing.

When all the elements come together, it's one of those puzzling things.