| Answer | Crossword Clue |
|---|---|
| CELLS | You use gray ones |
| THINK | Use one's gray cells |
| THINK | Use gray matter |
| AGES | Turns one's hair gray |
| THINK | Exercise one's gray matter |
| IDEATES | Uses one's gray matter |
| AREAS | Gray ones are debatable |
| IDEATES | Uses one's gray cells |
| AREAS | Gray ones spark debate |
| AREAS | Gray ones can cause arguments |
