| Countries of the Soviet Union | 0 | - | 4.98 | 193,746 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,196 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,395 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,118 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,830 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,606 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,252 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,448 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,381 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,275 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,699 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,108 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,807 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,973 |
| Random European Capital to Country | 0 | - | 4.98 | 189,102 |
| Random European Country to Capital | 0 | - | 4.92 | 147,367 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,222 |
| Every European Country Shape | 0 | - | 4.96 | 199,940 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,618 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,814 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,756 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,408 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,251 |
| The Only European Country ... | 0 | - | 4.91 | 213,599 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,933 |
| Vietnam War Countries | 0 | - | 4.83 | 93,557 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,384 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,165 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,452 |
| Countries of Africa | 0 | - | 5.00 | 2,505,613 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,402 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,671 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,443 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,912 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,821 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,103 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,204 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,551 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,510 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,741 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,919 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,144 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,323 |
| Countries of the Middle East | 0 | - | 4.96 | 198,772 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,187 |
| Slavic Countries | 0 | - | 4.96 | 110,796 |
| African Island Countries | 0 | - | 4.96 | 100,700 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,468 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,832 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,616 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,400 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,974 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,530 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,626 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,698 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,124 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,111 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,226 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,494 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,181 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,341 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,161 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,451 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,648 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,718 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,487 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,784 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,873 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,736 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,926 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,782 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,522 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,042 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,129 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,593 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,277 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,285 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,316 |
| Monarchies of Europe | 0 | - | 4.90 | 97,244 |
| Monarchies of Asia | 0 | - | 4.97 | 70,556 |
| Countries of the German Empire | 0 | - | 4.51 | 37,634 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,586 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,399 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,630 |
| The Only African Country ... | 0 | - | 4.99 | 128,298 |
| The Only American Country ... | 0 | - | 4.92 | 120,688 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,750 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,214 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,986 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,267 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,954 |
| Countries That Border Russia | 0 | - | 4.98 | 458,662 |
| European Countries with One Border | 0 | - | 4.97 | 181,512 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,082 |
| Countries Bordering France | 0 | - | 4.85 | 397,755 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,816 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,046 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,964 |
| UK Immigration by Country | 0 | - | 4.94 | 139,520 |
| Central American Countries | 0 | - | 4.98 | 154,946 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,576 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,211 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,140 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,317 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,183 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,027 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,751 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,732 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,402 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,630 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,150 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,189 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,058 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,463 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,429 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,180 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,442 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,148 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,953 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,436 |
| Germany Country Quiz | 0 | - | 4.82 | 156,444 |
| Russia Country Quiz | 0 | - | 4.85 | 113,585 |
| Italy Country Quiz | 0 | - | 4.82 | 122,117 |
| Japan Country Quiz | 0 | - | 4.92 | 141,147 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,029 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,806 |
| Tanzania Country Quiz | 0 | - | 4.90 | 32,799 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,006 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,295 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,301 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,344 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,762 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,856 |
| Hindu Countries | 0 | - | 4.85 | 49,479 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,794 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,050 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,117 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,697 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,259 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,114 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,540 |
| Every African Country Shape | 0 | - | 4.90 | 85,921 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,318 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,055 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,140 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,077 |
| Countries Bordering India | 0 | - | 4.98 | 162,556 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,638 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,706 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,900 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,988 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,742 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,190 |
| Countries that Border China | 0 | - | 4.96 | 261,736 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,792 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,496 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,031 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,178 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,673 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,283 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,403 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,399 |
| Countries that Border Poland | 0 | - | 4.99 | 171,262 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,350 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,772 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,899 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,667 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,188 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,261 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,490 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,123 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,178 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,346 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,466 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,771 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,778 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,836 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,894 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,279 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,746 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,733 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,265 |
| Countries Closest to India | 0 | - | 4.97 | 102,164 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,859 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,204 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,502 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,063 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,439 |
| Countries that Beat China | 0 | - | 4.86 | 114,642 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,816 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,040 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,283 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,589 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,744 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,390 |
| Egypt Country Quiz | 0 | - | 4.82 | 76,998 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,572 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,522 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,281 |
