brainteasers

noun
UK /ˈbreɪnˌtiːzəz/
US /ˈbreɪnˌtiːzərz/

Puzzles that make you think hard to solve them.

We played brainteasers on the long car ride to keep everyone busy.


OTHER MEANINGS

2. Questions that are tricky and need clever thinking to answer.

The teacher ended class with a few brainteasers about numbers.

3. Games or toys designed to test your thinking skills.

The shelf was full of brainteasers like metal rings and wooden blocks.

4. Hard problems that take careful thought to figure out.

Fixing the schedule turned into one of those brainteasers nobody expected.