| Countries of the Soviet Union | 0 | - | 4.98 | 194,283 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,499 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,023 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,964 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,079 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,780 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,992 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,957 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,725 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,469 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,519 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,781 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,237 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,410 |
| Random European Capital to Country | 0 | - | 4.98 | 190,241 |
| Random European Country to Capital | 0 | - | 4.93 | 161,178 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,481 |
| Every European Country Shape | 0 | - | 4.96 | 200,991 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,036 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,124 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,234 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,362 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,459 |
| Biggest British Empire Countries | 0 | - | 4.73 | 99,569 |
| The Only European Country ... | 0 | - | 4.91 | 215,410 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,297 |
| Vietnam War Countries | 0 | - | 4.83 | 93,942 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,467 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,504 |
| Countries of Africa | 0 | - | 5.00 | 2,523,835 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,254 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,946 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,978 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,118 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,902 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,153 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,655 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,290 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,532 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,054 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,902 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,904 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 90,902 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,017 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,290 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,646 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,656 |
| Countries of the Middle East | 0 | - | 4.96 | 200,037 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,824 |
| Slavic Countries | 0 | - | 4.96 | 111,325 |
| African Island Countries | 0 | - | 4.96 | 101,238 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,680 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,412 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,068 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,858 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,351 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,235 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,310 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,438 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,586 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,773 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,977 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,781 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,796 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,646 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,898 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,932 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,759 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,597 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,422 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,067 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,404 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,760 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,583 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,814 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,870 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,788 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,792 |
| Monarchies of Europe | 0 | - | 4.90 | 97,767 |
| Monarchies of Asia | 0 | - | 4.97 | 70,876 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,683 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,854 |
| The Only African Country ... | 0 | - | 4.99 | 128,768 |
| The Only American Country ... | 0 | - | 4.92 | 121,236 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,957 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,517 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,503 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,039 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,587 |
| Countries That Border Russia | 0 | - | 4.98 | 460,562 |
| European Countries with One Border | 0 | - | 4.97 | 182,234 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,096 |
| Countries Bordering France | 0 | - | 4.83 | 401,360 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,177 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,791 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,581 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,943 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,038 |
| UK Immigration by Country | 0 | - | 4.94 | 140,458 |
| Central American Countries | 0 | - | 4.98 | 155,632 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,130 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,962 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,568 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,163 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,235 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,320 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,235 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,842 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,127 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,526 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,177 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,014 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,800 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,739 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,614 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,575 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,366 |
| Every African Country Shape | 0 | - | 4.90 | 86,747 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,705 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,578 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,720 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,375 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,589 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,886 |
| Countries Bordering India | 0 | - | 4.98 | 163,231 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,986 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,069 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,047 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,781 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,060 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,363 |
| Countries that Border China | 0 | - | 4.96 | 262,611 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,123 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,710 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,329 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,427 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,126 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,384 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,853 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,666 |
| Countries that Border Poland | 0 | - | 4.99 | 171,866 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,103 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,344 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,421 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,221 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,948 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,816 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,735 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,205 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,726 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,453 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,619 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,341 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,613 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,195 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,613 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,747 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,021 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,274 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,303 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,827 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,885 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,745 |
| Countries Closest to India | 0 | - | 4.97 | 102,515 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,310 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,388 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,751 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,467 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,558 |
| Germany Country Quiz | 0 | - | 4.82 | 157,299 |
| Russia Country Quiz | 0 | - | 4.85 | 114,105 |
| Italy Country Quiz | 0 | - | 4.82 | 122,782 |
| Japan Country Quiz | 0 | - | 4.93 | 142,006 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,089 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,140 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,222 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,380 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,529 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,057 |
| Hindu Countries | 0 | - | 4.86 | 49,883 |
| Random European Flag to Country | 0 | - | 4.89 | 181,663 |
| Random African Flag to Country | 0 | - | 4.88 | 74,557 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,749 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,452 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,315 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,006 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,940 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,710 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,336 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,175 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,434 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,902 |
| Countries Closest to Egypt | 0 | - | 4.83 | 100,815 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,230 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,821 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,131 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,427 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,266 |
| Countries that Beat China | 0 | - | 4.86 | 115,275 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,315 |
