| Length | Countries | Answer | % Correct |
|---|---|---|---|
| 2920 | DRC, Rep. of Congo, Angola | Congo | 100%
|
| 1,599 | Zambia, DRC, Angola, Namibia, Botswana, | Zambezi | 71%
|
| 658 | DRC, CAR, Rep. of Congo | Ubangi | 42%
|
| 1,338 | Angola, DRC | Kasai | 34%
|
| 870 | Cameroon, Nigeria | Benue | 24%
|
| 694 | Angola, Namibia, Botswana | Okavango | 18%
|
| 752 | DRC, CAR | Uele | 16%
|
| 684 | Angola, DRC | Kwango | 11%
|
| 600 | Angola, DRC | Kwilu | 8%
|
| 795 | DRC | Lomami | 8%
|
| 746 | DRC | Sankuru | 5%
|
| 640 | DRC | Aruwimi | 3%
|
| 652 | Angola, Namibia | Kunene | 3%
|
| 621 | Chad, Cameroon | Logone | 3%
|
| 746 | Rep. of Congo, Gabon | Ogoogue | 0%
|