| Countries of the Soviet Union | 0 | - | 4.98 | 194,403 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,584 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,219 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,137 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,148 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,994 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,205 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,110 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,822 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,519 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,681 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,964 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,394 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,527 |
| Random European Capital to Country | 0 | - | 4.98 | 190,585 |
| Random European Country to Capital | 0 | - | 4.93 | 164,393 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,546 |
| Every European Country Shape | 0 | - | 4.96 | 201,252 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,133 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,465 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,565 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,768 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,730 |
| The Only European Country ... | 0 | - | 4.91 | 215,903 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,661 |
| Vietnam War Countries | 0 | - | 4.83 | 94,047 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,712 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,561 |
| Countries of Africa | 0 | - | 5.00 | 2,529,048 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,137 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,079 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,339 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,392 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,018 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,331 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,062 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,046 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,322 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,135 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,417 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,852 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,087 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,732 |
| Countries of the Middle East | 0 | - | 4.96 | 200,677 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,964 |
| Slavic Countries | 0 | - | 4.96 | 111,455 |
| African Island Countries | 0 | - | 4.96 | 101,388 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,777 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,143 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,620 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,239 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,118 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,602 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,392 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,493 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,501 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,062 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,938 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,357 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,962 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,947 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,782 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,039 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,019 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,286 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,710 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,350 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,442 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,967 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,589 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,282 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,553 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,953 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,697 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,890 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,011 |
| 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 | 97,925 |
| 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 | 82,707 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,760 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,235 |
| The Only African Country ... | 0 | - | 4.98 | 128,899 |
| The Only American Country ... | 0 | - | 4.92 | 121,373 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,046 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,616 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,647 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,208 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,745 |
| Countries That Border Russia | 0 | - | 4.98 | 461,017 |
| European Countries with One Border | 0 | - | 4.97 | 182,469 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,280 |
| Countries Bordering France | 0 | - | 4.83 | 401,793 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,527 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,961 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,725 |
| UK Immigration by Country | 0 | - | 4.94 | 140,631 |
| Central American Countries | 0 | - | 4.98 | 155,847 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,277 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,781 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,100 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,779 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,223 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 128,228 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,836 |
| 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 | 79,909 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,685 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,847 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,750 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,804 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,864 |
| 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 | 51,675 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,755 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,272 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,803 |
| Germany Country Quiz | 0 | - | 4.82 | 157,525 |
| Russia Country Quiz | 0 | - | 4.85 | 114,243 |
| Italy Country Quiz | 0 | - | 4.82 | 123,154 |
| Japan Country Quiz | 0 | - | 4.93 | 142,183 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,371 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,219 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,004 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,281 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,659 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,584 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,166 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,557 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,028 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,105 |
| Hindu Countries | 0 | - | 4.86 | 49,987 |
| 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 | 96,373 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,010 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,124 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,005 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,542 |
| Every African Country Shape | 0 | - | 4.90 | 86,959 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,110 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,274 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,956 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,307 |
| Countries Bordering India | 0 | - | 4.98 | 163,307 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,075 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,168 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,093 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,421 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,132 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,434 |
| Countries that Border China | 0 | - | 4.96 | 262,804 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,213 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,776 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,407 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,499 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,229 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,721 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,964 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,737 |
| Countries that Border Poland | 0 | - | 4.99 | 172,023 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,303 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,485 |
| 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 | 74,878 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,245 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,499 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,777 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,565 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,561 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,702 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,833 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,077 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,351 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,376 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,384 |
| Countries Closest to Canada | 0 | - | 4.91 | 197,990 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,241 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,924 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,849 |
| 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 | 197,672 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,822 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,644 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,492 |
| 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 | 92,581 |
| 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 | 77,378 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,728 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,410 |
