| Countries of the German Empire | 0 | - | 4.51 | 38,219 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 111,051 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,598 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,911 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,343 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,421 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,487 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,468 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,111 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,018 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,466 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,337 |
| Vietnam War Countries | 0 | - | 4.82 | 94,642 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,321 |
| UK Immigration by Country | 0 | - | 4.94 | 141,723 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,719 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,976 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,014 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,076 |
| Random European Capital to Country | 0 | - | 4.98 | 192,153 |
| Random European Country to Capital | 0 | - | 4.93 | 165,909 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,567 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,035 |
| Every European Country Shape | 0 | - | 4.96 | 203,003 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,221 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,713 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,861 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,315 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,157 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,814 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,866 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,134 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,513 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,363 |
| The Only European Country ... | 0 | - | 4.91 | 219,037 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,959 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,527 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,477 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,914 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,921 |
| Countries of Africa | 0 | - | 5.00 | 2,560,027 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,850 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,412 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,899 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,532 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,202 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,519 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,862 |
| Europe Capital to Country | 0 | - | 4.99 | 252,107 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,989 |
| European Capitals by Map | 0 | - | 4.99 | 142,116 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,880 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,195 |
| European Coastal Capitals | 0 | - | 4.95 | 91,317 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,808 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,710 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,815 |
| Countries of the Middle East | 0 | - | 4.96 | 202,965 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,190 |
| Slavic Countries | 0 | - | 4.96 | 112,376 |
| African Island Countries | 0 | - | 4.96 | 102,450 |
| Random European Flag to Country | 0 | - | 4.90 | 184,239 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,601 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,828 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,325 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,614 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,377 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,517 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,526 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,963 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,798 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,064 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,726 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,273 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,921 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,156 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,137 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,883 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,807 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,015 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,987 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,002 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,470 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,072 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,728 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,877 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,854 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,251 |
| Official Cities in the UK | 0 | - | 4.89 | 286,285 |
| Cities in European History #1 | 0 | - | 4.63 | 134,616 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,591 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,130 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,588 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,717 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,478 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,264 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,105 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,674 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,520 |
| Monarchies of Europe | 0 | - | 4.90 | 98,881 |
| Monarchies of Asia | 0 | - | 4.97 | 71,507 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,292 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,529 |
| The Only African Country ... | 0 | - | 4.99 | 129,663 |
| The Only American Country ... | 0 | - | 4.92 | 122,220 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,381 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,292 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,754 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,509 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,847 |
| Countries That Border Russia | 0 | - | 4.98 | 464,515 |
| European Countries with One Border | 0 | - | 4.97 | 183,807 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,548 |
| Countries Bordering France | 0 | - | 4.83 | 404,923 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,872 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,202 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,831 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,030 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,937 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,239 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,564 |
| Central American Countries | 0 | - | 4.98 | 157,347 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,602 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,419 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,986 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,102 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,504 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,640 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,339 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,320 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,844 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 102,044 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,103 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,580 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,825 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,347 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,891 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,798 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,749 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,470 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,898 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,610 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,823 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,723 |
| Germany Country Quiz | 0 | - | 4.82 | 158,842 |
| Russia Country Quiz | 0 | - | 4.83 | 115,319 |
| Japan Country Quiz | 0 | - | 4.93 | 143,337 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,746 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,256 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,593 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,087 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,076 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,645 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,456 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,244 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,822 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,992 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,422 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,357 |
| Hindu Countries | 0 | - | 4.87 | 50,582 |
| Most Forested European Countries | 0 | - | 4.80 | 75,684 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,730 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,613 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,690 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,708 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,592 |
| Countries Once Held by Sweden | 0 | - | 4.18 | 34,856 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,869 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,660 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,609 |
| Every African Country Shape | 0 | - | 4.90 | 88,391 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,231 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,191 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,012 |
| Countries Bordering India | 0 | - | 4.98 | 163,821 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,010 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,952 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,701 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,262 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,061 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,839 |
| Countries that Border China | 0 | - | 4.96 | 264,291 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,111 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,138 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,192 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,801 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,099 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,915 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,892 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,258 |
| Countries that Border Poland | 0 | - | 4.99 | 173,175 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,745 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,553 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,452 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,847 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,537 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,618 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,897 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,149 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,133 |
