| Countries of the Soviet Union | 0 | - | 4.98 | 194,402 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,584 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,216 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,136 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,148 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,988 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,202 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,107 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,819 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,519 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,679 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,964 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,385 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,523 |
| Random European Capital to Country | 0 | - | 4.98 | 190,579 |
| Random European Country to Capital | 0 | - | 4.93 | 164,379 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,543 |
| Every European Country Shape | 0 | - | 4.96 | 201,248 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,131 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,454 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,559 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,764 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,727 |
| The Only European Country ... | 0 | - | 4.91 | 215,896 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,656 |
| Vietnam War Countries | 0 | - | 4.83 | 94,045 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,704 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,560 |
| Countries of Africa | 0 | - | 5.00 | 2,528,982 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,135 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,078 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,338 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,390 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,009 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,327 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,059 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,045 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,311 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,132 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,415 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,846 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,079 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,732 |
| Countries of the Middle East | 0 | - | 4.96 | 200,673 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,961 |
| Slavic Countries | 0 | - | 4.96 | 111,452 |
| African Island Countries | 0 | - | 4.96 | 101,386 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,776 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,130 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,619 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,236 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,109 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,598 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,389 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,490 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,501 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,061 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,933 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,355 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,961 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,945 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,782 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,034 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,014 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,282 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,706 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,343 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,440 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,966 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,586 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,272 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,552 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,952 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,697 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,886 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,008 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,901 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,913 |
| Monarchies of Europe | 0 | - | 4.90 | 97,920 |
| Monarchies of Asia | 0 | - | 4.97 | 70,954 |
| Countries of the German Empire | 0 | - | 4.51 | 37,859 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,706 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,759 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,229 |
| The Only African Country ... | 0 | - | 4.98 | 128,896 |
| The Only American Country ... | 0 | - | 4.92 | 121,373 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,043 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,615 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,645 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,205 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,744 |
| Countries That Border Russia | 0 | - | 4.98 | 461,014 |
| European Countries with One Border | 0 | - | 4.97 | 182,465 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,275 |
| Countries Bordering France | 0 | - | 4.83 | 401,790 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,519 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,961 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,723 |
| UK Immigration by Country | 0 | - | 4.94 | 140,627 |
| Central American Countries | 0 | - | 4.98 | 155,845 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,275 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,779 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,093 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,751 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,201 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 127,719 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,820 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,280 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,103 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,906 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,685 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,842 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,747 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,802 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,863 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,486 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,930 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,673 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,751 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,271 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,793 |
| Germany Country Quiz | 0 | - | 4.82 | 157,523 |
| Russia Country Quiz | 0 | - | 4.85 | 114,242 |
| Italy Country Quiz | 0 | - | 4.82 | 123,152 |
| Japan Country Quiz | 0 | - | 4.93 | 142,181 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,362 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,216 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,002 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,281 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,657 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,561 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,164 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,551 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,028 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,103 |
| Hindu Countries | 0 | - | 4.86 | 49,985 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,266 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,318 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,371 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,010 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,121 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,000 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,538 |
| Every African Country Shape | 0 | - | 4.90 | 86,958 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,104 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,243 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,937 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,289 |
| Countries Bordering India | 0 | - | 4.98 | 163,306 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,074 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,167 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,092 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,420 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,131 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,433 |
| Countries that Border China | 0 | - | 4.96 | 262,802 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,212 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,776 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,407 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,498 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,225 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,721 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,960 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,735 |
| Countries that Border Poland | 0 | - | 4.99 | 172,022 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,299 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,483 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,309 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,012 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,875 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,245 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,498 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,776 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,562 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,556 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,700 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,833 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,076 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,350 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,374 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,384 |
| Countries Closest to Canada | 0 | - | 4.91 | 197,987 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,240 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,923 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,847 |
| Countries Closest to India | 0 | - | 4.97 | 102,608 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,425 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,669 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,822 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,641 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,489 |
| Countries that Beat China | 0 | - | 4.86 | 115,455 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,435 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,580 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,609 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,790 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,889 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,375 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,727 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,409 |
