| Countries of the German Empire | 0 | - | 4.51 | 37,877 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,544 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,181 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,769 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,764 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,212 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,094 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,280 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,183 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,229 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,486 |
| Vietnam War Countries | 0 | - | 4.82 | 94,100 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,279 |
| UK Immigration by Country | 0 | - | 4.94 | 140,712 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,052 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,696 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,503 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,563 |
| Random European Capital to Country | 0 | - | 4.98 | 190,665 |
| Random European Country to Capital | 0 | - | 4.93 | 164,718 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,446 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,571 |
| Every European Country Shape | 0 | - | 4.96 | 201,358 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,497 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,158 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,938 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,722 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,628 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,601 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,646 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,884 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,796 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,116 |
| The Only European Country ... | 0 | - | 4.91 | 216,052 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,816 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,811 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,589 |
| Countries of Africa | 0 | - | 5.00 | 2,530,959 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,114 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,410 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,119 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,096 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,517 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,167 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,450 |
| Europe Capital to Country | 0 | - | 4.99 | 249,626 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,619 |
| European Capitals by Map | 0 | - | 4.99 | 138,644 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,906 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,258 |
| European Coastal Capitals | 0 | - | 4.95 | 90,404 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,604 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,580 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,225 |
| Countries of the Middle East | 0 | - | 4.96 | 200,794 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,040 |
| Slavic Countries | 0 | - | 4.96 | 111,513 |
| African Island Countries | 0 | - | 4.96 | 101,455 |
| Random European Flag to Country | 0 | - | 4.89 | 182,031 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,880 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,685 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,306 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,222 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,704 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,460 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,560 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,523 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,108 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,007 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,418 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,037 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,992 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,836 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,109 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,880 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,728 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,666 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,202 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,347 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,741 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,073 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,543 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,058 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,659 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,357 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,603 |
| Official Cities in the UK | 0 | - | 4.89 | 283,143 |
| Cities in European History #1 | 0 | - | 4.63 | 133,824 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,910 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,026 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,086 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,191 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,758 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,917 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,086 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,959 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,953 |
| Monarchies of Europe | 0 | - | 4.90 | 97,980 |
| Monarchies of Asia | 0 | - | 4.97 | 70,994 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,786 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,363 |
| The Only African Country ... | 0 | - | 4.98 | 128,968 |
| The Only American Country ... | 0 | - | 4.92 | 121,422 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,068 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,672 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,698 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,285 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,803 |
| Countries That Border Russia | 0 | - | 4.98 | 461,193 |
| European Countries with One Border | 0 | - | 4.97 | 182,543 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,349 |
| Countries Bordering France | 0 | - | 4.83 | 401,982 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,682 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,022 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,063 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,961 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,066 |
| Central American Countries | 0 | - | 4.98 | 155,919 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,351 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,056 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,480 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,308 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,394 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,395 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 132,328 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,979 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,336 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,138 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,772 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,949 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,728 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,951 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,820 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,864 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,910 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,519 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,969 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,796 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,296 |
| Germany Country Quiz | 0 | - | 4.82 | 157,626 |
| Russia Country Quiz | 0 | - | 4.85 | 114,303 |
| Italy Country Quiz | 0 | - | 4.82 | 123,232 |
| Japan Country Quiz | 0 | - | 4.93 | 142,245 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,251 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,302 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,691 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,836 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,151 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,083 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,450 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,296 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,614 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,054 |
| Hindu Countries | 0 | - | 4.86 | 50,020 |
| Most Forested European Countries | 0 | - | 4.80 | 75,252 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,290 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,336 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,392 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,610 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,273 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,766 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,331 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,197 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,592 |
| Every African Country Shape | 0 | - | 4.90 | 87,072 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,170 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,552 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,131 |
| Italy by Picture | 0 | - | 4.41 | 30,894 |
| Countries Bordering India | 0 | - | 4.98 | 163,342 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,113 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,201 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,105 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,457 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,163 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,458 |
| Countries that Border China | 0 | - | 4.96 | 262,894 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,253 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,793 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,437 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,536 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,274 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,733 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,014 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,875 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,765 |
| Countries that Border Poland | 0 | - | 4.99 | 172,091 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,409 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,379 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,548 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,339 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,054 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,266 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,520 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,800 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,686 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,738 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,865 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,103 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,403 |
