| Countries of the Soviet Union | 0 | - | 4.98 | 194,829 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,872 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,810 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,730 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,379 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,760 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,895 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,552 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,206 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,697 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,293 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,510 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,785 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,813 |
| Random European Capital to Country | 0 | - | 4.98 | 191,509 |
| Random European Country to Capital | 0 | - | 4.93 | 165,430 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,808 |
| Every European Country Shape | 0 | - | 4.96 | 202,271 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,434 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,645 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,139 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,741 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,214 |
| The Only European Country ... | 0 | - | 4.91 | 217,489 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,864 |
| Vietnam War Countries | 0 | - | 4.82 | 94,373 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,633 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,746 |
| Countries of Africa | 0 | - | 5.00 | 2,545,983 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,674 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,583 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,917 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,720 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,569 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,906 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,535 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,318 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,941 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,354 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,655 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,064 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,474 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,026 |
| Countries of the Middle East | 0 | - | 4.96 | 201,755 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,605 |
| Slavic Countries | 0 | - | 4.96 | 111,916 |
| African Island Countries | 0 | - | 4.96 | 101,902 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,971 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,195 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,275 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,824 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,890 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,406 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,960 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,060 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,727 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,424 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,465 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,818 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,511 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,391 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,249 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,453 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,301 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,691 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,856 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,405 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,287 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,705 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,382 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,593 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,937 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,551 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,129 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,102 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,589 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,301 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,234 |
| Monarchies of Europe | 0 | - | 4.90 | 98,376 |
| Monarchies of Asia | 0 | - | 4.97 | 71,245 |
| Countries of the German Empire | 0 | - | 4.51 | 38,028 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,783 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,040 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,550 |
| The Only African Country ... | 0 | - | 4.99 | 129,293 |
| The Only American Country ... | 0 | - | 4.92 | 121,839 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,223 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,900 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,065 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,887 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,289 |
| Countries That Border Russia | 0 | - | 4.98 | 462,909 |
| European Countries with One Border | 0 | - | 4.97 | 183,157 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,934 |
| Countries Bordering France | 0 | - | 4.83 | 403,644 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,772 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,427 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,242 |
| UK Immigration by Country | 0 | - | 4.94 | 141,190 |
| Central American Countries | 0 | - | 4.98 | 156,816 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,983 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,897 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,938 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,849 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,832 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,627 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,406 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,719 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,367 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,427 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,250 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,029 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,379 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,286 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,522 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,198 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,690 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,294 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,821 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,161 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,525 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,375 |
| Germany Country Quiz | 0 | - | 4.83 | 158,209 |
| Russia Country Quiz | 0 | - | 4.83 | 114,725 |
| Japan Country Quiz | 0 | - | 4.93 | 142,772 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,239 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,499 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,136 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,423 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,906 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,874 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,623 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,023 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,195 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,243 |
| Hindu Countries | 0 | - | 4.86 | 50,318 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,530 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,475 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,529 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,279 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,595 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,434 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,011 |
| Every African Country Shape | 0 | - | 4.90 | 87,702 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,722 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,505 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,451 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,049 |
| Countries Bordering India | 0 | - | 4.98 | 163,581 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,450 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,677 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,577 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,939 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,688 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,641 |
| Countries that Border China | 0 | - | 4.96 | 263,594 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,754 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,976 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,909 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 132,658 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,685 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,824 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,543 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,034 |
| Countries that Border Poland | 0 | - | 4.99 | 172,645 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,969 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,017 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,575 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,294 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,406 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,459 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,676 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,973 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,888 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,400 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,999 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 94,149 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,289 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,761 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,773 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,728 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,623 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,594 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,023 |
| Countries Closest to Turkey | 0 | - | 4.96 | 126,587 |
| Countries Closest to India | 0 | - | 4.97 | 102,959 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,846 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,387 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 69,053 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,968 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,860 |
| Countries that Beat China | 0 | - | 4.85 | 116,154 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,090 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,039 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,812 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,931 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,986 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,667 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,891 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,482 |
