The result is the charming but puzzling mystery of the dachshund psyche-a subject which men have long wracked their brains about.

The origin and nature of these gamma-ray bursts are one of the most puzzling mysteries presented by the Compton Gamma Ray Observatory, a spacecraft launched in April 1991.

Nancy is asked to solve a puzzling mystery, whereupon she encounters a second case.

After the first case, Mr. Christopher often calls on Tin Goyenda to solve another puzzling mystery.

In particular they were in high hopes that The Mirrour of the Lyf of Ralph Stokesey would provide answers to some of the most puzzling mysteries in English magic.

It had been a puzzling mystery to everyone how the heavy iron side of the cot had been lowered.

They strengthened the view among scientists that a "new physics" will have to be developed to account for the missing solar neutrinos, one of the most puzzling and provocative mysteries in the physical sciences.

The puzzling mysteries of time travel, of "alternative futures", which even the Priestesses of Lys themselves knew very little of!

It is still a puzzling mystery as to why this problem was never addressed with a better base fuze or even removing the small HE charge in the rear of the round.

This is one of the most puzzling mysteries we've tackled.