| Continent | Population | Answer | % Correct |
|---|---|---|---|
| South America | 13,300,000 | Rio de Janeiro | 97%
|
| Europe | 3,500,000 | Rome | 90%
|
| Asia | 8,400,000 | Riyadh | 86%
|
| Europe | 3,275,000 | Rotterdam | 86%
|
| Africa | 2,075,000 | Rabat | 72%
|
| North America | 1,690,000 | Raleigh | 69%
|
| South America | 3,850,000 | Recife | 69%
|
| North America | 1,080,000 | Richmond | 63%
|
| Europe | 1,300,000 | Rostov-on-Don | 60%
|
| South America | 1,380,000 | Rosario | 57%
|
| Europe | 620,974 | Rīga | 56%
|
| Europe | 5,650,000 | The Ruhr | 50%
|
| Asia | 3,550,000 | Rāwalpindi | 47%
|
| North America | 1,182,337 | Rochester-Batavia | 42%
|
| North America | 657,958 | Reno-Carson City | 32%
|
| Europe | 534,801 | Ryazan | 19%
|
| Asia | 1,123,558 | Raipur | 18%
|
| Asia | 1,950,000 | Rājkot | 18%
|
| Asia | 1,470,000 | Rānchi | 16%
|
| North America | 432,216 | Rockford-Freeport | 11%
|
| Oceania | 58,400 | Rotorua | 11%
|
| Asia | 1,270,000 | Rìzhào | 10%
|
| Oceania | 79,602 | Rockhampton | 9%
|
| North America | 837,252 | Reynosa | 7%
|
| South America | 718,070 | Ribeirão Preto | 5%
|
| South America | 385,130 | Rio Branco | 4%
|
| Africa | 311,901 | Rustenburg | 3%
|
| South America | 432,800 | Resistencia | 2%
|
| Africa | 490,120 | Ruiru | 2%
|
| Africa | 123,255 | Relizane | 1%
|
| Africa | 123,890 | Rabak | 0%
|
| Africa | 122,100 | Raoued | 0%
|