conundrum

Primordial magnetism might also help resolve another cosmological conundrum known as the Hubble tension — probably the hottest topic in cosmology.

Public sector unions create a genuine political conundrum for Democrats.

If, upon examining the Palmer conundrum, the answer occurs to you, call (301) 243-9800.

In fact, the communion conundrum highlights the first visible fissure in the church of Francis.

This Fourth of July conundrum was addressed all the way back in 1907, in the esteemed medical journal JAMA.

Take this lack of cooperative instinct and add a competitive situation, and Benenson says you get a real conundrum.

We protest, too, against that class of cases where the metaphor becomes a species of conundrum.

And my conundrum was, Had I lectured my curate, or had my curate lectured me?

This was the feathered conundrum that flitted about before me.

The Irish cook one day proposed to the ship's captain the following conundrum: "Is anny thin' lost whin yeez know where 'tis?"

But I haven't really looked into the question since I gave the conundrum up twenty years ago, on what was then the best authority.