| Countries of the Soviet Union | 0 | - | 4.98 | 185,033 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 74,635 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 148,223 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 222,337 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 98,587 |
| Countries of Europe After World War II | 0 | - | 4.98 | 171,180 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 139,870 |
| Biggest Trading Partners - UK | 0 | - | 4.87 | 57,137 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 87,480 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 100,093 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 93,789 |
| Asian Countries with the Most Christians | 0 | - | 4.87 | 84,750 |
| African Countries with the Most Christians | 0 | - | 4.92 | 67,494 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,791 |
| Random European Capital to Country | 0 | - | 4.97 | 153,028 |
| Random European Country to Capital | 0 | - | 4.92 | 135,190 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 67,251 |
| Every European Country Shape | 0 | - | 4.95 | 171,634 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 67,525 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,454 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,693 |
| Biggest British Empire Countries | 0 | - | 4.70 | 79,496 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,209 |
| The Only European Country ... | 0 | - | 4.94 | 179,104 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,576 |
| Vietnam War Countries | 0 | - | 4.81 | 86,506 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 86,691 |
| Countries of Africa | 0 | - | 5.00 | 2,174,273 |
| Countries that Bordered the USSR | 0 | - | 4.95 | 153,165 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 87,871 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 178,576 |
| Biggest Trading Partners - Australia | 0 | - | 4.88 | 42,949 |
| Countries of Europe by Population | 0 | - | 4.98 | 127,484 |
| Most Populous Countries by Year | 0 | - | 4.81 | 93,987 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,756 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,720 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,248 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,750 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 67,021 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,188,259 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 186,941 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,146 |
| Countries of the Middle East | 0 | - | 4.96 | 174,039 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,980 |
| Slavic Countries | 0 | - | 4.96 | 100,743 |
| African Island Countries | 0 | - | 4.96 | 89,510 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,421 |
| Countries of North America Quiz | 0 | - | 5.00 | 882,191 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 111,221 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 93,790 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 119,586 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 197,954 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 160,746 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 126,707 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 107,137 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 132,426 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 138,581 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,845 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 131,051 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 88,866 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 96,750 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,154 |
| Biggest Trading Partners - Germany | 0 | - | 4.98 | 62,687 |
| Biggest Trading Partners - Spain | 0 | - | 4.90 | 50,338 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 205,738 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 161,264 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 157,727 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 81,069 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 88,507 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,282 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 105,448 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,231 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 19,617 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 53,478 |
| Asian Countries with the Shortest Names | 0 | - | 4.98 | 121,806 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 101,011 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 85,292 |
| Monarchies of Europe | 0 | - | 4.88 | 87,160 |
| Monarchies of Asia | 0 | - | 4.95 | 54,123 |
| Countries of the German Empire | 0 | - | 4.50 | 33,758 |
| Countries "Ruled" by King Charles III | 0 | - | 4.79 | 80,758 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 111,946 |
| The Only African Country ... | 0 | - | 4.98 | 105,321 |
| The Only American Country ... | 0 | - | 4.94 | 109,881 |
| African Countries by a Single Clue | 0 | - | 4.91 | 63,557 |
| African Diaspora - Top 10 Countries | 0 | - | 4.91 | 66,019 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 84,024 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.81 | 37,628 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 121,108 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 91,626 |
| Countries That Border Russia | 0 | - | 4.98 | 426,609 |
| European Countries with One Border | 0 | - | 4.96 | 151,062 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 144,680 |
| Asian Countries with the Fewest Borders | 0 | - | 4.82 | 88,495 |
| Countries Bordering France | 0 | - | 4.87 | 357,820 |
| Countries Bordering Germany | 0 | - | 4.99 | 341,140 |
| Countries Closest to Africa | 0 | - | 4.95 | 145,389 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 77,021 |
| UK Immigration by Country | 0 | - | 4.95 | 125,454 |
| Central American Countries | 0 | - | 4.98 | 139,710 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 104,540 |
| Total United States Immigration by Country | 0 | - | 4.89 | 96,908 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 185,479 |
| Most Forested European Countries | 0 | - | 4.82 | 68,382 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 179,160 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 109,717 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 101,974 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 81,556 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 92,306 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.96 | 52,524 |
| Countries with the Most Arabic Speakers | 0 | - | 4.91 | 70,657 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 111,851 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 181,016 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 115,713 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.94 | 25,284 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,549 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.89 | 81,711 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 84,343 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 60,019 |
| Countries Closest to Australia | 0 | - | 4.99 | 145,635 |
| Countries Closest to the Persian Gulf | 0 | - | 4.88 | 68,649 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 189,521 |
| Germany Country Quiz | 0 | - | 4.82 | 140,625 |
| Russia Country Quiz | 0 | - | 4.84 | 103,425 |
| Italy Country Quiz | 0 | - | 4.81 | 109,380 |
| Japan Country Quiz | 0 | - | 4.92 | 119,664 |
| Indonesia Country Quiz | 0 | - | 4.82 | 65,518 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 119,116 |
| Croatia Country Quiz | 0 | - | 4.81 | 37,405 |
| Random Asian Country to Capital | 0 | - | 4.94 | 85,775 |
| Random Asian Capital to Country | 0 | - | 4.97 | 89,362 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 66,221 |
| South China Sea Countries | 0 | - | 4.82 | 53,885 |
| Biggest French Empire Countries | 0 | - | 4.46 | 51,417 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 128,329 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 83,422 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 89,452 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 66,753 |
| Canada or Africa by Area | 0 | - | 4.81 | 13,688 |
| Countries With the Most Russian Speakers | 0 | - | 4.95 | 56,435 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 52,284 |
| Every Asian Country Shape | 0 | - | 4.93 | 75,338 |
| Every African Country Shape | 0 | - | 4.87 | 69,982 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.82 | 51,522 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 124,638 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 68,385 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 81,348 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 67,922 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 135,520 |
| Countries Bordering India | 0 | - | 4.98 | 156,168 |
| Countries that Border Hungary | 0 | - | 4.98 | 96,636 |
| Countries Bordering Austria | 0 | - | 4.97 | 110,173 |
| Countries Bordering Tanzania | 0 | - | 4.97 | 66,378 |
| Countries Bordering Brazil | 0 | - | 4.96 | 123,940 |
| Countries Bordering Iran | 0 | - | 4.83 | 88,344 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 60,256 |
| Countries that Border China | 0 | - | 4.96 | 233,683 |
| Countries that Border Iraq | 0 | - | 4.97 | 101,749 |
| Countries Bordering Kenya | 0 | - | 4.86 | 58,107 |
| Countries Bordering Myanmar | 0 | - | 4.86 | 71,122 |
| Countries Bordering Saudi Arabia | 0 | - | 4.94 | 112,065 |
| Countries Bordering Serbia | 0 | - | 4.95 | 83,279 |
| Countries Bordering South Africa | 0 | - | 4.97 | 78,357 |
| Countries Bordering Turkey | 0 | - | 4.98 | 109,069 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,850 |
| Countries that Border Poland | 0 | - | 4.99 | 158,819 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 93,576 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 78,876 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 69,623 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 53,490 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 62,815 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 45,316 |
| Countries that Visit France the Most | 0 | - | 4.84 | 39,998 |
| Most-Visited Countries by Popes | 0 | - | 4.63 | 76,228 |
| Countries Closest to Spain | 0 | - | 4.95 | 206,243 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.92 | 76,057 |
| Countries Closest to Vietnam | 0 | - | 4.96 | 86,987 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 66,369 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,946 |
| Countries Closest to Cyprus | 0 | - | 4.81 | 45,282 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 85,050 |
| Countries Closest to Canada | 0 | - | 4.90 | 184,680 |
| Closest Countries to North Korea | 0 | - | 4.92 | 104,833 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.83 | 61,426 |
| Countries Closest to Turkey | 0 | - | 4.94 | 106,591 |
| Countries Closest to India | 0 | - | 4.96 | 94,298 |
| Countries Closest to Japan | 0 | - | 4.93 | 127,457 |
| Countries Closest to Italy | 0 | - | 4.97 | 179,336 |
| Countries Closest to Ethiopia | 0 | - | 4.89 | 63,639 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 64,993 |
| Countries that Beat the United States | 0 | - | 4.92 | 146,133 |
| Countries that Beat China | 0 | - | 4.82 | 100,286 |
| Countries that Beat Australia | 0 | - | 4.84 | 70,467 |
| Colombia Country Quiz | 0 | - | 4.92 | 35,124 |
| Tanzania Country Quiz | 0 | - | 4.89 | 29,767 |
| Brunei Country Quiz | 0 | - | 4.88 | 19,522 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.82 | 31,046 |
| Jordan Country Quiz | 0 | - | 4.83 | 27,859 |
| Moldova Country Quiz | 0 | - | 4.86 | 27,413 |
| Tuvalu Country Quiz | 0 | - | 4.84 | 19,452 |
