| Hint | Answer | % Correct |
|---|---|---|
| 2nd longest in the US | Mississippi River | 98%
|
| Longest river in the US | Missouri River | 98%
|
| Huge river flowing from China through Indochina | Mekong River | 94%
|
| Longest river in Australia | Murray River | 79%
|
| River of Liverpool | Mersey River | 62%
|
| Largest and longest river system in Canada | Mackenzie River | 50%
|
| Largest tributary of the Hudson River, shares its name with a hairstyle | Mohawk River | 44%
|
| River flowing through Belgium and Netherlands, namesake of the Mosasaur | Meuse River | 42%
|
| One of the largest tributaries of the Amazon, shares it name with a cake | Madeira River | 25%
|
| Larger Bolivian river that joins with the Beni to form the above river | Mamore River | 4%
|
| Ominously named river of Delaware | Murderkill River | 4%
|
| Peruvian river, considered the main source of the Amazon | Marañón River | 2%
|
| Australian river named after a "member of a very prominent mining family" | Mossman River | 0%
|
| Short river in southern Norway | Muru River | 0%
|