| Countries of the Soviet Union | 0 | - | 4.98 | 194,829 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,872 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,810 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,206 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,761 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,895 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,691 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,307 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,295 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,849 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,035 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,611 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,379 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,049 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,968 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,730 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,129 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,674 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,569 |
| Europe Capital to Country | 0 | - | 4.99 | 250,958 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,248 |
| European Capitals by Map | 0 | - | 4.99 | 140,055 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,323 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,666 |
| European Coastal Capitals | 0 | - | 4.95 | 90,856 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,646 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,026 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,146 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,552 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,691 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,856 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,266 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,405 |
| Official Cities in the UK | 0 | - | 4.89 | 284,629 |
| Cities in European History #1 | 0 | - | 4.63 | 134,239 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,228 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,551 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,316 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,432 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,697 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,152 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,232 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,787 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,427 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,478 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,819 |
| UK Immigration by Country | 0 | - | 4.94 | 141,190 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,510 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,785 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,832 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,627 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,250 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 83,357 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,239 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,119 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,005 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,501 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,398 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,813 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,972 |
| Random European Capital to Country | 0 | - | 4.98 | 191,509 |
| Random European Country to Capital | 0 | - | 4.93 | 165,430 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,214 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,243 |
| Hindu Countries | 0 | - | 4.86 | 50,318 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,281 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,279 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,808 |
| Every European Country Shape | 0 | - | 4.96 | 202,271 |
| Political Movements by Country | 0 | - | 4.46 | 72,630 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,451 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,434 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,583 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,406 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,720 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,356 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,413 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,545 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,550 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,441 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,447 |
| Independence from Whom | 0 | - | 4.99 | 212,188 |
| National Founders | 0 | - | 4.40 | 83,890 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,799 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,616 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,525 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,017 |
| Random European Flag to Country | 0 | - | 4.89 | 183,023 |
| Countries by Founding Story | 0 | - | 4.95 | 77,408 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,783 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,228 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,523 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,415 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,438 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,301 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,918 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,410 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,971 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,836 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,311 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,247 |
| Asia Map Quiz | 0 | - | 4.99 | 919,989 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,168 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,125 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,122 |
| Cities by Former Name | 0 | - | 4.83 | 91,749 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,004 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,978 |
| Recently Independent Countries | 0 | - | 4.98 | 159,512 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,645 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,065 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,139 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,741 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,102 |
| The Only European Country ... | 0 | - | 4.91 | 217,489 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,864 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,309 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,516 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,844 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,387 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,633 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,846 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,746 |
| Countries by Former Name | 0 | - | 4.99 | 125,384 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,345 |
| Countries of Africa | 0 | - | 5.00 | 2,545,984 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,196 |
| Historical City to Country | 0 | - | 4.84 | 78,657 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,555 |
| Scotland A-Z | 0 | - | 4.73 | 41,342 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,875 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,020 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,002 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,971 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,355 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,174 |
| Australia Map Quiz | 0 | - | 4.95 | 345,255 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,118 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,464 |
| Flags of North and South America | 0 | - | 4.99 | 374,494 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,829 |
| Counties of England | 0 | - | 4.97 | 799,174 |
| African East Coast | 0 | - | 4.96 | 96,314 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,558 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,463 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,661 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,928 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,906 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,287 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,705 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,382 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,593 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,906 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,535 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,318 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,941 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,354 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,655 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,430 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,937 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,585 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,005 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,429 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,590 |
| Former Capitals | 0 | - | 4.88 | 71,533 |
| Asia Capital to Country | 0 | - | 4.96 | 126,892 |
| African Capitals by Map | 0 | - | 4.99 | 134,207 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,734 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,652 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,747 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,672 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,052 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,686 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,942 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,936 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,310 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,565 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,786 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,129 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,475 |
| Countries of the Middle East | 0 | - | 4.96 | 201,755 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,605 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,589 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,301 |
| Slavic Countries | 0 | - | 4.96 | 111,916 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 101,045 |
| African Island Countries | 0 | - | 4.96 | 101,902 |
| Most Forested European Countries | 0 | - | 4.80 | 75,469 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,666 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,234 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,429 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,078 |
| Battle to Country | 0 | - | 4.91 | 53,558 |
| Monarchies of Europe | 0 | - | 4.90 | 98,376 |
| Monarchies of Asia | 0 | - | 4.97 | 71,245 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,573 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,971 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,814 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,085 |
| Countries of the German Empire | 0 | - | 4.51 | 38,028 |
