| Clue | Source | Date |
|---|---|---|
| Capacity of some trucks | USA Today | 25 May 2019 |
| Capacity of some trucks | ||
| 20,000 pounds | New York Times | 06 May 2015 |
| 20,000 pounds | ||
| Weight of some trucks | ||
| Twenty thousand pounds | ||
| Weight of some trucks | ||
| Capacity of a large truck. | ||
| Capacity of some trucks. |