| Countries of the German Empire | 0 | - | 4.51 | 37,656 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,301 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,858 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,813 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,240 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,712 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,340 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,469 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,017 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,763 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,906 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,364 |
| Vietnam War Countries | 0 | - | 4.83 | 93,594 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,451 |
| UK Immigration by Country | 0 | - | 4.94 | 139,607 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,235 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,116 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,032 |
| Random European Capital to Country | 0 | - | 4.98 | 189,187 |
| Random European Country to Capital | 0 | - | 4.92 | 147,436 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,817 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,265 |
| Every European Country Shape | 0 | - | 4.96 | 200,124 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,137 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,662 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,241 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,103 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,229 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,950 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,802 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,519 |
| Biggest British Empire Countries | 0 | - | 4.73 | 92,128 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,876 |
| The Only European Country ... | 0 | - | 4.91 | 213,784 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,108 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,508 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,725 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,669 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,198 |
| Countries of Africa | 0 | - | 5.00 | 2,507,367 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,716 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,198 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,272 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,253 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,598 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,553 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,795 |
| Europe Capital to Country | 0 | - | 4.99 | 247,680 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,434 |
| European Capitals by Map | 0 | - | 4.99 | 136,228 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,167 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,594 |
| European Coastal Capitals | 0 | - | 4.95 | 89,733 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,760 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,645 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,284 |
| Countries of the Middle East | 0 | - | 4.96 | 198,878 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,241 |
| Slavic Countries | 0 | - | 4.96 | 110,844 |
| African Island Countries | 0 | - | 4.96 | 100,777 |
| Random European Flag to Country | 0 | - | 4.89 | 180,874 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,476 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,694 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,472 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,082 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,604 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,701 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,749 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,147 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,153 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,271 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,553 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,245 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,387 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,224 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,500 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,360 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,133 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.40 | 51,481 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,898 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,499 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,505 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,103 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,971 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,832 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,972 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,820 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,582 |
| Official Cities in the UK | 0 | - | 4.89 | 280,484 |
| Cities in European History #1 | 0 | - | 4.63 | 133,106 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,402 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,104 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,696 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,760 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,183 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,617 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,350 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,328 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,357 |
| Monarchies of Europe | 0 | - | 4.90 | 97,299 |
| Monarchies of Asia | 0 | - | 4.97 | 70,591 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,430 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,736 |
| The Only African Country ... | 0 | - | 4.99 | 128,349 |
| The Only American Country ... | 0 | - | 4.92 | 120,742 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,773 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,244 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,033 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,361 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,017 |
| Countries That Border Russia | 0 | - | 4.98 | 458,874 |
| European Countries with One Border | 0 | - | 4.97 | 181,600 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,512 |
| Countries Bordering France | 0 | - | 4.83 | 398,880 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,007 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,586 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,092 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,069 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,186 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,661 |
| Central American Countries | 0 | - | 4.98 | 155,022 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,649 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,234 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,854 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,862 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,211 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,350 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,229 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,073 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,785 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,769 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,438 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,204 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,230 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,111 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,484 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,470 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,208 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,480 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,189 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,975 |
| Germany Country Quiz | 0 | - | 4.82 | 156,516 |
| Russia Country Quiz | 0 | - | 4.85 | 113,620 |
| Italy Country Quiz | 0 | - | 4.82 | 122,178 |
| Japan Country Quiz | 0 | - | 4.92 | 141,225 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,845 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,032 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,133 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,674 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,698 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,227 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,192 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,391 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,386 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,786 |
| Hindu Countries | 0 | - | 4.85 | 49,563 |
| Most Forested European Countries | 0 | - | 4.80 | 74,904 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,840 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,070 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,146 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,532 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,035 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,686 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,418 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,281 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,680 |
| Every African Country Shape | 0 | - | 4.90 | 86,078 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,400 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,092 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,167 |
| Countries Bordering India | 0 | - | 4.98 | 162,590 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,689 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,771 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,923 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,060 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,775 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,212 |
| Countries that Border China | 0 | - | 4.96 | 261,799 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,841 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,525 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,069 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,221 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,733 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,303 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,470 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,440 |
| Countries that Border Poland | 0 | - | 4.99 | 171,333 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,525 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,447 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,834 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,933 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,698 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,278 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,521 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,282 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,369 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,493 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,795 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,836 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,878 |
