brainteaser

== English == === Alternative forms === brain teaser, brain-teaser === Etymology === From brain +‎ teaser. === Pronunciation === (General American) IPA(key): /ˈbɹeɪnˌtizɚ/ === Noun === brainteaser (plural brainteasers) (informal) A problem or puzzle devised to exercise the brain and mind. Synonym: brain-tickler (informal) Any difficult problem or puzzle. Synonyms: stumper, puzzler, enigma ==== Related terms ==== brainteasing ==== Translations ====