| Countries of the Soviet Union | 0 | - | 4.98 | 193,782 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,210 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,420 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,397 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,274 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,652 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,292 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,644 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,727 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,178 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,196 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,173 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,842 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,101 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,082 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,158 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,479 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,435 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,918 |
| Europe Capital to Country | 0 | - | 4.99 | 247,433 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,389 |
| European Capitals by Map | 0 | - | 4.99 | 136,128 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,133 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,571 |
| European Coastal Capitals | 0 | - | 4.95 | 89,707 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,675 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,470 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,737 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,495 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,832 |
| Official Cities in the UK | 0 | - | 4.89 | 280,386 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,372 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,070 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,678 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,738 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,285 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,335 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,855 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,024 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,043 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,870 |
| Cities in European History #1 | 0 | - | 4.63 | 133,060 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,152 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,821 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,776 |
| UK Immigration by Country | 0 | - | 4.94 | 139,544 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,165 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,828 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,333 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,197 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,761 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,656 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,075 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,816 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,167 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,142 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,989 |
| Random European Capital to Country | 0 | - | 4.98 | 189,138 |
| Random European Country to Capital | 0 | - | 4.92 | 147,389 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,267 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,859 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,209 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,709 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,239 |
| Every European Country Shape | 0 | - | 4.96 | 200,057 |
| Political Movements by Country | 0 | - | 4.46 | 72,247 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,150 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,638 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,151 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,204 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,717 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,026 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,788 |
| Hindu Countries | 0 | - | 4.85 | 49,526 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,747 |
| Random European Flag to Country | 0 | - | 4.89 | 180,837 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,592 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,285 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,693 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,662 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,928 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,309 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,972 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,668 |
| Asia Map Quiz | 0 | - | 4.99 | 906,601 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,046 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,644 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,869 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,005 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| Cities by Former Name | 0 | - | 4.84 | 90,929 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,900 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,473 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,313 |
| Recently Independent Countries | 0 | - | 4.98 | 157,938 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,877 |
| Independence from Whom | 0 | - | 4.99 | 209,590 |
| National Founders | 0 | - | 4.40 | 83,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,676 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,452 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,970 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,829 |
| The Only European Country ... | 0 | - | 4.91 | 213,686 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,015 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,427 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,199 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,052 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,748 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,444 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,176 |
| Countries by Founding Story | 0 | - | 4.95 | 76,489 |
| Countries by Former Name | 0 | - | 4.99 | 124,234 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,870 |
| Countries of Africa | 0 | - | 5.00 | 2,506,369 |
| Historical City to Country | 0 | - | 4.84 | 78,110 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,330 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,109 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,640 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,327 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,968 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,554 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,938 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,759 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,410 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,886 |
| Australia Map Quiz | 0 | - | 4.94 | 342,375 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,210 |
| African East Coast | 0 | - | 4.96 | 94,997 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,383 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,414 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,616 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,130 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,140 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,855 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,234 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,217 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,561 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,528 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,761 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,158 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,310 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,743 |
| Former Capitals | 0 | - | 4.88 | 71,124 |
| Asia Capital to Country | 0 | - | 4.96 | 125,692 |
| African Capitals by Map | 0 | - | 4.99 | 132,106 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,058 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,060 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,165 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,619 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,405 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,809 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,360 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,214 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,605 |
| Countries of the Middle East | 0 | - | 4.96 | 198,824 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,210 |
| Slavic Countries | 0 | - | 4.96 | 110,815 |
| African Island Countries | 0 | - | 4.96 | 100,734 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,663 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,260 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,478 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,686 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,666 |
| Communist Countries in History | 0 | - | 4.63 | 492,338 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,097 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,170 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,659 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,434 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,022 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,566 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,663 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,721 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,131 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,130 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,253 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,530 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,209 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,369 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,196 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,471 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,922 |
| Scotland A-Z | 0 | - | 4.73 | 41,027 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,744 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,676 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,832 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,100 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,441 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,151 |
| North America Map Quiz | 0 | - | 4.98 | 244,255 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,417 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,319 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,893 |
| Flags of North and South America | 0 | - | 4.99 | 366,626 |
| Australian States and Territories | 0 | - | 4.95 | 140,604 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,663 |
| Counties of England | 0 | - | 4.97 | 788,846 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,746 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,099 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,001 |
