brain-twister


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brain-twister

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

brain-twister

and brain-teaser
n. a puzzle, especially one that requires thinking. Can you help me with this brain-teaser? I can spend my whole vacation doing brain-twisters.
References in periodicals archive ?
She tosses the child numerous other puzzles and brain-twisters as she feeds the chickens or makes the bread, never missing an opportunity to make him smarter.
Tongue-twisters should, therefore, be renamed brain-twisters.