| Countries of the Soviet Union | 0 | - | 4.98 | 195,223 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,914 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,875 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,829 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,409 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,861 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,971 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,608 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,262 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,726 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,375 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,585 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,814 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,856 |
| Random European Capital to Country | 0 | - | 4.98 | 191,588 |
| Random European Country to Capital | 0 | - | 4.93 | 165,493 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,837 |
| Every European Country Shape | 0 | - | 4.96 | 202,354 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,469 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,834 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,205 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,917 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,249 |
| The Only European Country ... | 0 | - | 4.91 | 217,717 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,006 |
| Vietnam War Countries | 0 | - | 4.82 | 94,405 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,794 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,771 |
| Countries of Africa | 0 | - | 5.00 | 2,547,621 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,731 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,627 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,990 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,757 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,796 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,967 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,574 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,342 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,982 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,371 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,676 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,722 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,673 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,058 |
| Countries of the Middle East | 0 | - | 4.96 | 201,865 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,695 |
| Slavic Countries | 0 | - | 4.96 | 111,993 |
| African Island Countries | 0 | - | 4.96 | 101,972 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,999 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,839 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,346 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,891 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,003 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,518 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,049 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,114 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,754 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,466 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,553 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,890 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,590 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,441 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,326 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,516 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,323 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,732 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,874 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,521 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,372 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,840 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,449 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,625 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,970 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,629 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,191 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,124 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,656 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,349 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,272 |
| Monarchies of Europe | 0 | - | 4.90 | 98,444 |
| Monarchies of Asia | 0 | - | 4.97 | 71,291 |
| Countries of the German Empire | 0 | - | 4.51 | 38,054 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,799 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,076 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,688 |
| The Only African Country ... | 0 | - | 4.99 | 129,346 |
| The Only American Country ... | 0 | - | 4.92 | 121,889 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,246 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,943 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,129 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,963 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,359 |
| Countries That Border Russia | 0 | - | 4.98 | 463,089 |
| European Countries with One Border | 0 | - | 4.97 | 183,249 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,024 |
| Countries Bordering France | 0 | - | 4.83 | 403,822 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,908 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,471 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,297 |
| UK Immigration by Country | 0 | - | 4.94 | 141,245 |
| Central American Countries | 0 | - | 4.98 | 156,890 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,027 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,968 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,148 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,961 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,887 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,921 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,472 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,770 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,386 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,486 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,307 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,073 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,423 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,347 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,546 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,244 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,724 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,347 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,843 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,203 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,545 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,764 |
| Germany Country Quiz | 0 | - | 4.83 | 158,314 |
| Russia Country Quiz | 0 | - | 4.83 | 114,783 |
| Japan Country Quiz | 0 | - | 4.93 | 142,860 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,339 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,530 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,153 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,443 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,939 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,352 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,772 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,100 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,225 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,261 |
| Hindu Countries | 0 | - | 4.86 | 50,346 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,557 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,492 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,547 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,301 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,763 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,594 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,050 |
| Every African Country Shape | 0 | - | 4.90 | 87,801 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,786 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,614 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,507 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,119 |
| Countries Bordering India | 0 | - | 4.98 | 163,614 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,486 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,719 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,587 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,988 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,725 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,659 |
| Countries that Border China | 0 | - | 4.96 | 263,682 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,810 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,987 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,946 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 132,986 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,734 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,839 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,600 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,060 |
| Countries that Border Poland | 0 | - | 4.99 | 172,697 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,053 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,076 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,615 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,317 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,476 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,484 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,711 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,992 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,926 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,499 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,022 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 94,182 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,311 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,801 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,816 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,776 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,688 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,663 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,041 |
| Countries Closest to Turkey | 0 | - | 4.96 | 126,630 |
| Countries Closest to India | 0 | - | 4.97 | 102,993 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,889 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,463 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 69,081 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,004 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,953 |
| Countries that Beat China | 0 | - | 4.85 | 116,237 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,155 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,101 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,841 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,949 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,991 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,703 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,915 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,492 |
