| Clue | Source | Date |
|---|---|---|
| Without sound | Wall Street Journal | 11 Aug 2020 |
| Without a sound | The Washington Post | 05 May 2017 |
| Without a sound | LA Times Daily | 05 May 2017 |
| In silence | LA Times Daily | 15 Apr 2017 |
| In silence | The Washington Post | 15 Apr 2017 |
| Without a sound | ||
| In silence | ||
| In silence | ||
| Without speaking | ||
| Without a word | ||
| In silence | ||
| How Harpo performed | ||
| In an unspeakable way | ||
| Without a word. |