puzzle

Something, such as a game, toy, or problem, that requires ingenuity and often persistence in solving or assembling.

Something that baffles or confuses; an enigma.

The condition of being perplexed; bewilderment.

To baffle or confuse mentally by presenting or being a difficult problem or matter. synonym: perplex.

To clarify or solve (something confusing) by reasoning or study.

To be perplexed.

To ponder over a problem in an effort to solve or understand it.

A difficult question or problem; specifically, a riddle, or a toy or contrivance which is designed to try one’s ingenuity.

Embarrassment; perplexity: as, to be in a puzzle, or in a state of puzzle.

To perplex or pose with or as with difficult points, problems, or questions; put to a stand; gravel.