| Countries of Europe Before World War I | 0 | - | 4.99 | 156,936 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,838 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,397 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,710 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,955 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,276 |
| Countries of the German Empire | 0 | - | 4.51 | 38,045 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,895 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,335 |
| Vietnam War Countries | 0 | - | 4.82 | 94,392 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,779 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,161 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,714 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,708 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,583 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,722 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,867 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,469 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,048 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,947 |
| UK Immigration by Country | 0 | - | 4.94 | 141,216 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,560 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,807 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,911 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,303 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,834 |
| Random European Capital to Country | 0 | - | 4.98 | 191,560 |
| Random European Country to Capital | 0 | - | 4.93 | 165,473 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,825 |
| Every European Country Shape | 0 | - | 4.96 | 202,314 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,089 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,454 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,446 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,991 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,428 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,742 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,169 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,835 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,233 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,252 |
| The Only European Country ... | 0 | - | 4.91 | 217,618 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,947 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,729 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,293 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,760 |
| Countries of Africa | 0 | - | 5.00 | 2,546,907 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,607 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,831 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,739 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,937 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,563 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,330 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,961 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,362 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,668 |
| Europe Capital to Country | 0 | - | 4.99 | 251,065 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,309 |
| European Capitals by Map | 0 | - | 4.99 | 140,256 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,363 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,702 |
| European Coastal Capitals | 0 | - | 4.95 | 90,889 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,757 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,539 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,584 |
| Countries of the Middle East | 0 | - | 4.96 | 201,815 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,660 |
| Slavic Countries | 0 | - | 4.96 | 111,963 |
| African Island Countries | 0 | - | 4.96 | 101,935 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,990 |
| Random European Flag to Country | 0 | - | 4.89 | 183,082 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,563 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,317 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,862 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,955 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,460 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,015 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,095 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,742 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,446 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,514 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,844 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,549 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,414 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,287 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,483 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,544 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,446 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,191 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,320 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,375 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,330 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,779 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,421 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,614 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,954 |
| Official Cities in the UK | 0 | - | 4.89 | 284,772 |
| Cities in European History #1 | 0 | - | 4.63 | 134,269 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,252 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,596 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,342 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,456 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,161 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,117 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,631 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,329 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,257 |
| Monarchies of Europe | 0 | - | 4.90 | 98,415 |
| Monarchies of Asia | 0 | - | 4.97 | 71,272 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,157 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,795 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,060 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,633 |
| The Only African Country ... | 0 | - | 4.99 | 129,317 |
| The Only American Country ... | 0 | - | 4.92 | 121,863 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,233 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,918 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,098 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,936 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,332 |
| Countries That Border Russia | 0 | - | 4.98 | 463,010 |
| European Countries with One Border | 0 | - | 4.97 | 183,211 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,987 |
| Countries Bordering France | 0 | - | 4.83 | 403,749 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,850 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,453 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,315 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,479 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,620 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,329 |
| Central American Countries | 0 | - | 4.98 | 156,873 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,007 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,947 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,051 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,529 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,860 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,800 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,440 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,744 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,380 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,852 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,462 |
| Arms Exports - United States | 0 | - | 4.77 | 62,557 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,052 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,406 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,324 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,536 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,221 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,713 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,321 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,185 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,535 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,637 |
| Germany Country Quiz | 0 | - | 4.83 | 158,282 |
| Russia Country Quiz | 0 | - | 4.83 | 114,762 |
| Japan Country Quiz | 0 | - | 4.93 | 142,831 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,516 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,146 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,431 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,923 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,166 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,632 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,761 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,071 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,211 |
| Hindu Countries | 0 | - | 4.86 | 50,338 |
| Most Forested European Countries | 0 | - | 4.80 | 75,483 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,546 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,483 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,538 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,667 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,442 |
| Countries Once Held by Sweden | 0 | - | 4.18 | 34,817 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,442 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,691 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,527 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,034 |
| Every African Country Shape | 0 | - | 4.90 | 87,759 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,756 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,565 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,485 |
| Countries Bordering India | 0 | - | 4.98 | 163,599 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,471 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,702 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,584 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,965 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,708 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,651 |
| Countries that Border China | 0 | - | 4.96 | 263,648 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,785 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,983 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,930 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 132,872 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,710 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,834 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,576 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,045 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,050 |
| Countries that Border Poland | 0 | - | 4.99 | 172,671 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,958 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,019 |
