| Countries of the Soviet Union | 0 | - | 4.98 | 193,731 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,194 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,391 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,115 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,827 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,602 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,244 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,439 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,374 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,275 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,696 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,099 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,807 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,966 |
| Random European Capital to Country | 0 | - | 4.98 | 189,092 |
| Random European Country to Capital | 0 | - | 4.92 | 147,364 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,215 |
| Every European Country Shape | 0 | - | 4.96 | 199,915 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,615 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,798 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,754 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,395 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,247 |
| The Only European Country ... | 0 | - | 4.91 | 213,581 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,917 |
| Vietnam War Countries | 0 | - | 4.83 | 93,550 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,378 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,163 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,444 |
| Countries of Africa | 0 | - | 5.00 | 2,505,474 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,397 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,664 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,437 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,907 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,810 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,097 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,198 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,199 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,543 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,505 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,739 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,814 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,126 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,321 |
| Countries of the Middle East | 0 | - | 4.96 | 198,761 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,184 |
| Slavic Countries | 0 | - | 4.96 | 110,793 |
| African Island Countries | 0 | - | 4.96 | 100,695 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,467 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,774 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,613 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,396 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,970 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,524 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,621 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,694 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,122 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,107 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,220 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,491 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,179 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,339 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,155 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,450 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,646 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,709 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,483 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,771 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,862 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,724 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,924 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,777 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,506 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,042 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,126 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,590 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,269 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,283 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,310 |
| Monarchies of Europe | 0 | - | 4.90 | 97,239 |
| Monarchies of Asia | 0 | - | 4.97 | 70,551 |
| Countries of the German Empire | 0 | - | 4.51 | 37,629 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,586 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,396 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,620 |
| The Only African Country ... | 0 | - | 4.99 | 128,293 |
| The Only American Country ... | 0 | - | 4.92 | 120,686 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,748 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,210 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,978 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,258 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,949 |
| Countries That Border Russia | 0 | - | 4.98 | 458,652 |
| European Countries with One Border | 0 | - | 4.97 | 181,508 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,038 |
| Countries Bordering France | 0 | - | 4.85 | 397,627 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,802 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,039 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,954 |
| UK Immigration by Country | 0 | - | 4.94 | 139,518 |
| Central American Countries | 0 | - | 4.98 | 154,944 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,570 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,122 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,134 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,314 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,178 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,025 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,751 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,728 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,396 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,624 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,145 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,185 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,055 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,462 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,428 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,177 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,441 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,143 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,953 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,412 |
| Germany Country Quiz | 0 | - | 4.82 | 156,436 |
| Russia Country Quiz | 0 | - | 4.85 | 113,584 |
| Italy Country Quiz | 0 | - | 4.82 | 122,110 |
| Japan Country Quiz | 0 | - | 4.92 | 141,137 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,017 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,803 |
| Tanzania Country Quiz | 0 | - | 4.90 | 32,797 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,004 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,263 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,300 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,342 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,761 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,853 |
| Hindu Countries | 0 | - | 4.85 | 49,469 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,791 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,049 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,115 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,694 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,241 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,101 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,523 |
| Every African Country Shape | 0 | - | 4.90 | 85,904 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,312 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,055 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,139 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,069 |
| Countries Bordering India | 0 | - | 4.98 | 162,555 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,634 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,694 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,899 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,983 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,737 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,189 |
| Countries that Border China | 0 | - | 4.96 | 261,732 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,791 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,492 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,028 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,176 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,671 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,282 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,391 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,394 |
| Countries that Border Poland | 0 | - | 4.99 | 171,254 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,343 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,761 |
| 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 | 74,183 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,260 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,488 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,117 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,171 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,344 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,465 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,766 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,776 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,833 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,891 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,277 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,745 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,733 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,251 |
| Countries Closest to India | 0 | - | 4.97 | 102,163 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,851 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,199 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,498 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,058 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,429 |
| Countries that Beat China | 0 | - | 4.86 | 114,638 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,809 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,032 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,282 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,588 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,744 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,389 |
| Egypt Country Quiz | 0 | - | 4.82 | 76,996 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,537 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,521 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,279 |
