| 100% | ITASCA | 6 | Lake that's the Mississippi's source |
| 88% | ITASCA | 6 | Lake that's the source of the Mississippi |
| 84% | ITASCA | 6 | Minnesota lake that's the source of the Mississippi River |
| 84% | ITASCA | 6 | Lake that's a source of the Mississippi |
| 75% | ITASCA | 6 | Lake that is a source of the Mississippi |
| 72% | ERIE | 4 | Lake that's the source of the Niagara River |
| 72% | XXXX | 4 | Lake that's the source of the Niagara River |
| 71% | ERIE | 4 | Lake that's one of the sources of Niagara Falls |
| 70% | ITASCA | 6 | Lake that feeds the Mississippi |
| 70% | ITASCA | 6 | Minnesota lake that's the headwater of the Mississippi River |
| 69% | OTSEGO | 6 | New York lake that's the source of the Susquehanna River |
| 68% | ITASCA | 6 | Minnesota lake that feeds the Mississippi |
| 63% | ITASCA | 6 | Lake ___, source of the Mississippi |
| 63% | ITASCA | 6 | Lake source of the Mississippi |
| 62% | ITASCA | 6 | The Mississippi's source |
| 60% | ITASCA | 6 | Lake —, source in Minnesota, US, of the Mississippi River |
| 59% | ERIE | 4 | Lake that's the "E" in HOMES |
| 58% | ITASCA | 6 | Mississippi's source lake |
| 58% | ITASCA | 6 | Minnesota lake at the source of the Mississippi River |
| 57% | ERIE | 4 | Lake that's the "E" in the memory aid "HOMES" |
| 56% | ERIE | 4 | Lake that's the "E" in the Great Lakes mnemonic device "HOMES" |
| 55% | ERIE | 4 | Great Lake that's the "E" in the HOMES mnemonic |
| 55% | VANERN | 6 | Swedish lake that's the largest in the European Union |
| 54% | ONEGA | 5 | Russian lake that’s the second largest in Europe |
| 54% | ERIE | 4 | Lake that's largely fed by the Detroit River |
| 54% | CACAO | 5 | Tree that's the source of chocolate |
| 54% | NUTMEG | 6 | Tree that's the source of mace |
| 54% | POPPY | 5 | Flower that's the source of opium |
| 54% | CACAO | 5 | Bean that's the source of chocolate |