| Answer | Crossword Clue |
|---|---|
| CLUE | Help in solving |
| HINT | Help in puzzle-solving |
| CHERCHEZLAFEMME | Advice in solving some mysteries |
| CLUE | Aid in solving a mystery |
| NORA | Nick's partner in crime-solving |
| THE | Helpful word in solving cryptograms |
| ERASER | Occasional aid in crossword solving |
| MASTERKEY | A rule useful in solving difficulties. |
| MAZE | Puzzle in which people take turns solving |
| ASTA | Aid in solving the disappearance of the Thin Man |
| GANGSINE | "Sleight of hand" used when solving trigonometry problems in groups? |
