Not to be so easily dismissed, Belvawney reveals the puzzling fact that no one can be sure exactly where the cottage stood.

Foremost of these is the puzzling fact that the male sea horse is the one that gets pregnant and bears the young.

The hypothesis explains several otherwise puzzling facts about cancer.

The finding, which is being published today in the journal Science, could explain the puzzling fact that otherwise harmless bacteria invading the body can turn lethal.

The Shadow stood motionless for a moment, as if turning various puzzling facts over in his keen mind.

The theory accounts for a number of otherwise very puzzling facts.

I shall confine myself quickly to two puzzling facts.

But a puzzling fact is that many of those price increases have not yet been passed on to the final consumer.

It uses this analysis to explain the otherwise puzzling fact that the diffident schoolboy does know but cannot claim to know.

The resulting list typically confirms the perennial and puzzling fact that music critics across the country love indie-rock more than any other genre.