| Answer | Crossword Clue |
|---|---|
| TRIG | One may consider all the angles in it |
| ORE | It may be all in the mine? |
| NINE | The digits in all but one of its two-digit multiples add up to it |
| JACOBS | A. J. ..., author of the best seller "The Know-It-All: One Man's Humble Quest to Become the Smartest Person in the World" |
