mindexercise

noun
UK /ˈmaɪndˌeksəsaɪz/
US /ˈmaɪndˌeksərsaɪz/

A mind exercise is a fun activity that makes your brain think and work hard.

Solving the puzzle was a good mind exercise before school.


OTHER MEANINGS

2. A practice of calming and training your attention, like meditation.

She does a short mind exercise each morning to feel calm.

3. A school task designed to strengthen thinking skills.

The teacher gave us a mind exercise to warm up our brains.

4. Any game or riddle that challenges your memory or logic.

Sudoku is my favorite kind of mind exercise.