brain-teaser
nounUK /ˈbreɪn ˌtiːzə/
US /ˈbreɪn ˌtiːzər/
A brain-teaser is a fun puzzle that makes you think hard.
The teacher gave us a brain-teaser about a fox, a chicken, and a bag of grain.
RELATED WORDS
OTHER MEANINGS
2. A tricky question with a clever or surprising answer.
My grandpa told me a brain-teaser that took me all afternoon to solve.
3. A mental exercise used to sharpen thinking skills.
She does a brain-teaser every morning before breakfast.
4. Something confusing that requires careful thought to understand.
Figuring out the bus schedule was a real brain-teaser.