brain-teaser

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brain-teaser

A puzzle or riddle that is challenging to solve. Boy, that's a real brain-teaser—anyone got any ideas for what it could mean?

brain-teaser

verb
References in periodicals archive ?
The brain-teaser, posted online, consists of blocks of seemingly random letters.
Hundreds of thousands of people from more than 213 different countries around the globe are finding their way to the brain-teaser site every month at: www.colstate.edu/mathcontest.
But mostly I just enjoyed trying to solve the brain-teasers without having a family bust-up.
Crosswords fan Brian Nuggert, of Sydney, has finally completed one of the brain-teasers - after 40 YEARS.