| Clue | Source | Date |
|---|---|---|
| *Source of endless funds | LA Times Daily | 28 Nov 2022 |
| Gold mine | LA Times Daily | 31 Mar 2018 |
| Gold mine | The Washington Post | 31 Mar 2018 |
| Gold mine | ||
| Green plant? | New York Times | 29 Jan 2017 |
| Green plant? | ||
| Parent, to some kids | Newsday | 09 Oct 2016 |
| *Source of endless funds | ||
| It can't be grown | ||
| Gold mine | ||
| Fortune hunter's mantra? | ||
| Revenue source | ||
| Subject of recent hit song. |