| Countries of the Soviet Union | 0 | - | 4.98 | 194,485 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,663 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,343 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,267 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,200 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,197 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,382 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,251 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,898 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,570 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,841 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,117 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,521 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,597 |
| Random European Capital to Country | 0 | - | 4.98 | 190,744 |
| Random European Country to Capital | 0 | - | 4.93 | 164,914 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,602 |
| Every European Country Shape | 0 | - | 4.96 | 201,445 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,187 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,733 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,721 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,001 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,852 |
| The Only European Country ... | 0 | - | 4.91 | 216,263 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,965 |
| Vietnam War Countries | 0 | - | 4.82 | 94,137 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,926 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,615 |
| Countries of Africa | 0 | - | 5.00 | 2,532,869 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,260 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,148 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,461 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,505 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,407 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,471 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,165 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,125 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,621 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,199 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,479 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,125 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,390 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,797 |
| Countries of the Middle East | 0 | - | 4.96 | 200,923 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,125 |
| Slavic Countries | 0 | - | 4.96 | 111,556 |
| African Island Countries | 0 | - | 4.96 | 101,515 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,829 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,678 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,747 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,375 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,326 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,796 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,535 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,625 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,556 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,150 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,070 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,490 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,109 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,052 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,894 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,174 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,116 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,392 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,758 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,638 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,654 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,147 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,720 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,377 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,642 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,091 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,799 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,945 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,145 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,013 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,002 |
| Monarchies of Europe | 0 | - | 4.90 | 98,027 |
| Monarchies of Asia | 0 | - | 4.97 | 71,027 |
| Countries of the German Empire | 0 | - | 4.51 | 37,894 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,720 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,811 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,565 |
| The Only African Country ... | 0 | - | 4.99 | 129,017 |
| The Only American Country ... | 0 | - | 4.92 | 121,482 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,091 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,714 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,741 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,369 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,857 |
| Countries That Border Russia | 0 | - | 4.98 | 461,373 |
| European Countries with One Border | 0 | - | 4.97 | 182,616 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,432 |
| Countries Bordering France | 0 | - | 4.83 | 402,155 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,839 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,082 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,821 |
| UK Immigration by Country | 0 | - | 4.94 | 140,773 |
| Central American Countries | 0 | - | 4.98 | 156,296 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,420 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,533 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,186 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,477 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,492 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,051 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,385 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,180 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,995 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,680 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,770 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,019 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,879 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,915 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,960 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,535 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,009 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,716 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,850 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,325 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,429 |
| Germany Country Quiz | 0 | - | 4.82 | 157,704 |
| Russia Country Quiz | 0 | - | 4.85 | 114,364 |
| Italy Country Quiz | 0 | - | 4.82 | 123,289 |
| Japan Country Quiz | 0 | - | 4.93 | 142,329 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,606 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,284 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,035 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,317 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,715 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,490 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,338 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,670 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,076 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,126 |
| Hindu Countries | 0 | - | 4.86 | 50,068 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,322 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,355 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,407 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,072 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,499 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,360 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,631 |
| Every African Country Shape | 0 | - | 4.90 | 87,148 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,240 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,706 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,200 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,582 |
| Countries Bordering India | 0 | - | 4.98 | 163,373 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,143 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,235 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,123 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,486 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,207 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,485 |
| Countries that Border China | 0 | - | 4.96 | 262,978 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,292 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,824 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,470 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,570 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,320 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,746 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,059 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,799 |
| Countries that Border Poland | 0 | - | 4.99 | 172,150 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,471 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,609 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,376 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,089 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,996 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,295 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,549 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,819 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,642 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,799 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,778 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,904 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,125 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,470 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,470 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,477 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,140 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,329 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,949 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,961 |
| Countries Closest to India | 0 | - | 4.97 | 102,695 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,544 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,872 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,877 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,755 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,709 |
| Countries that Beat China | 0 | - | 4.86 | 115,602 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,538 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,684 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,675 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,826 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,910 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,467 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,761 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,435 |
