| Countries of the Soviet Union | 0 | - | 4.98 | 194,429 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,608 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,247 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,841 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,801 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,050 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,240 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,048 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,718 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,957 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,237 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,443 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,170 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,429 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,694 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,180 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,483 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,164 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,136 |
| Europe Capital to Country | 0 | - | 4.99 | 249,558 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,578 |
| European Capitals by Map | 0 | - | 4.99 | 138,562 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,873 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,232 |
| European Coastal Capitals | 0 | - | 4.95 | 90,378 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,548 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,160 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,321 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,731 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,421 |
| Official Cities in the UK | 0 | - | 4.89 | 283,048 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,889 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,983 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,074 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,164 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,536 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,754 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,638 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,026 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,024 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,888 |
| Cities in European History #1 | 0 | - | 4.63 | 133,798 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,930 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,020 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,064 |
| UK Immigration by Country | 0 | - | 4.94 | 140,675 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,012 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,450 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,348 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 130,846 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,121 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,564 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,464 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,611 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,379 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,296 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,547 |
| Random European Capital to Country | 0 | - | 4.98 | 190,625 |
| Random European Country to Capital | 0 | - | 4.93 | 164,589 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,760 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,113 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,859 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,025 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,560 |
| Every European Country Shape | 0 | - | 4.96 | 201,298 |
| Political Movements by Country | 0 | - | 4.46 | 72,466 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,081 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,146 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,502 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,907 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,549 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,668 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,472 |
| Hindu Countries | 0 | - | 4.86 | 50,006 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,467 |
| Random European Flag to Country | 0 | - | 4.89 | 181,963 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,710 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,842 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,102 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,069 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,617 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,428 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,577 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,610 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,677 |
| Asia Map Quiz | 0 | - | 4.99 | 914,486 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,503 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,728 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,897 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,304 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,373 |
| Cities by Former Name | 0 | - | 4.83 | 91,419 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,860 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,983 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,103 |
| Recently Independent Countries | 0 | - | 4.98 | 158,998 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,542 |
| Independence from Whom | 0 | - | 4.99 | 211,276 |
| National Founders | 0 | - | 4.40 | 83,792 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,680 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,613 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,835 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,371 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,954 |
| The Only European Country ... | 0 | - | 4.91 | 215,994 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,741 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,558 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,385 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,723 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,372 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,773 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,579 |
| Countries by Founding Story | 0 | - | 4.95 | 77,051 |
| Countries by Former Name | 0 | - | 4.99 | 124,907 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,084 |
| Countries of Africa | 0 | - | 5.00 | 2,530,163 |
| Historical City to Country | 0 | - | 4.84 | 78,428 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,863 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,695 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,121 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,471 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,243 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,946 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,985 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,465 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,639 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,610 |
| Australia Map Quiz | 0 | - | 4.95 | 343,839 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,952 |
| African East Coast | 0 | - | 4.96 | 95,830 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,332 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,846 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,998 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,448 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,377 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,739 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,091 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,072 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,417 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,153 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,430 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,072 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,406 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,817 |
| Former Capitals | 0 | - | 4.88 | 71,377 |
| Asia Capital to Country | 0 | - | 4.96 | 126,469 |
| African Capitals by Map | 0 | - | 4.99 | 133,361 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,421 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,071 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,500 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,147 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,740 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,270 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,230 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,172 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,907 |
| Countries of the Middle East | 0 | - | 4.96 | 200,740 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,003 |
| Slavic Countries | 0 | - | 4.96 | 111,494 |
| African Island Countries | 0 | - | 4.96 | 101,430 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,766 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,443 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,789 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,763 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,472 |
| Communist Countries in History | 0 | - | 4.63 | 494,926 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,930 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,567 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,656 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,277 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,168 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,643 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,427 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,529 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,510 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,084 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,974 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,386 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,003 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,972 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,811 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,077 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,225 |
| Scotland A-Z | 0 | - | 4.73 | 41,230 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,168 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,489 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,332 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,295 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,985 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,725 |
| North America Map Quiz | 0 | - | 4.98 | 247,688 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,870 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,086 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,278 |
| Flags of North and South America | 0 | - | 4.99 | 371,920 |
| Australian States and Territories | 0 | - | 4.96 | 141,701 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,386 |
| Counties of England | 0 | - | 4.97 | 794,804 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,616 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,761 |
