She felt on the edge of resolving questions whose answers had eluded her.

The answer to one major question still eluded him.

Parmenion sat for a long time, puzzling at the question, but the answer eluded him.

The answer eluded him, so Pitt shrugged and gave up.

Jack begins to track down four more tapes, but the larger answer still eludes him.

The answers to those questions, along with so many others, eluded her.

The answers to all of these questions eluded him entirely.

No matter how many times he considered it, an answer always eluded him.

He considered this for some time, but still the answer eluded him.

The answer to that question eluded me, I must admit.