In the course of their work, forensic investigators are regularly presented with intriguing puzzles, and even the occasional murder mystery.

Now if you'll follow me, I'll see you get something warm in your stomach and pick your brain on an intriguing puzzle.

As an astrophysicist, cosmology had been an intriguing puzzle to him.

The film's only flaw is the mystery itself - a not very intriguing puzzle, although the story pivots on it.

Boris Eifman and his company are an intriguing puzzle, whatever else they are.

Moreover, the task of writing for Broadway is, it seems, a particularly intriguing new puzzle.

Fans of the endlessly intriguing puzzle that is time travel can list a new destination, at least through Nov. 4.

A month of routine, and then two intriguing puzzles in as many days.

But that's not nearly far enough to begin to lift this intriguing but chilly moral puzzle to anything close to greatness.

The future leadership of the insurgency is one of the most intriguing puzzles the book raises, but it leaves the issue in doubt.