| Giver | Post | Date |
| lcorbier | Three hoses, x, y, and z, each pump water at a constant rate into a 70 | 19-Aug-2020 |
| PrashantLakhotia | Three hoses, x, y, and z, each pump water at a constant rate into a 70 | 18-Sep-2019 |
| thekapone | Three hoses, x, y, and z, each pump water at a constant rate into a 70 | 08-Mar-2019 |
| Suvarcha | Three hoses, x, y, and z, each pump water at a constant rate into a 70 | 16-Aug-2017 |
| siddharthsinha123 | Three hoses, x, y, and z, each pump water at a constant rate into a 70 | 22-Jan-2017 |