| Countries of the Soviet Union | 0 | - | 4.98 | 193,712 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,191 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,381 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,367 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,199 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,587 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,233 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,616 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,684 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,118 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,133 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,156 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,823 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,060 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,055 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,105 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,429 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,381 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,765 |
| Europe Capital to Country | 0 | - | 4.99 | 247,329 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,324 |
| European Capitals by Map | 0 | - | 4.99 | 135,990 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,083 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,537 |
| European Coastal Capitals | 0 | - | 4.95 | 89,668 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,572 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,432 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,700 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,482 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,745 |
| Official Cities in the UK | 0 | - | 4.89 | 280,229 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,345 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,034 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,652 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,714 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,270 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,314 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,807 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,965 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,944 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,805 |
| Cities in European History #1 | 0 | - | 4.63 | 132,985 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,098 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,699 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,710 |
| UK Immigration by Country | 0 | - | 4.94 | 139,504 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,085 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,796 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,306 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,162 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,756 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,604 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,000 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,731 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,155 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,132 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,963 |
| Random European Capital to Country | 0 | - | 4.98 | 189,081 |
| Random European Country to Capital | 0 | - | 4.92 | 147,352 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,237 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,851 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,162 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,688 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,208 |
| Every European Country Shape | 0 | - | 4.95 | 199,862 |
| Political Movements by Country | 0 | - | 4.46 | 72,233 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,134 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,611 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,131 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,170 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,086 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,953 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,754 |
| Hindu Countries | 0 | - | 4.85 | 49,452 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,700 |
| Random European Flag to Country | 0 | - | 4.89 | 180,764 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,584 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,228 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,648 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,646 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,901 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,393 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,589 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,988 |
| Asia Map Quiz | 0 | - | 4.99 | 906,055 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,918 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,571 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,812 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,986 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,269 |
| Cities by Former Name | 0 | - | 4.84 | 90,885 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,521 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,981 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,278 |
| Recently Independent Countries | 0 | - | 4.98 | 157,884 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,769 |
| Independence from Whom | 0 | - | 4.99 | 209,514 |
| National Founders | 0 | - | 4.40 | 83,624 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,601 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,740 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,365 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,945 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,613 |
| The Only European Country ... | 0 | - | 4.91 | 213,549 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,880 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,342 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,189 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,941 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,619 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,351 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,161 |
| Countries by Founding Story | 0 | - | 4.95 | 76,461 |
| Countries by Former Name | 0 | - | 4.99 | 124,175 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,720 |
| Countries of Africa | 0 | - | 5.00 | 2,505,070 |
| Historical City to Country | 0 | - | 4.84 | 78,088 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,304 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,070 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,623 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,314 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,961 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,045 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,988 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,726 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,335 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,820 |
| Australia Map Quiz | 0 | - | 4.94 | 342,267 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,099 |
| African East Coast | 0 | - | 4.96 | 94,948 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,048 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,316 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,542 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,666 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,083 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,689 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,181 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,193 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,530 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,495 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,732 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,124 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,257 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,673 |
| Former Capitals | 0 | - | 4.88 | 71,093 |
| Asia Capital to Country | 0 | - | 4.96 | 125,641 |
| African Capitals by Map | 0 | - | 4.99 | 132,071 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,894 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,986 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,149 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,453 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,385 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,765 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,722 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,082 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,584 |
| Countries of the Middle East | 0 | - | 4.96 | 198,735 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,174 |
| Slavic Countries | 0 | - | 4.96 | 110,782 |
| African Island Countries | 0 | - | 4.96 | 100,678 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,659 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,245 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,463 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,683 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,631 |
| Communist Countries in History | 0 | - | 4.63 | 492,153 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,032 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,642 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,600 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,379 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,947 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,505 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,604 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,681 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,119 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,092 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,210 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,481 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,171 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,326 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,143 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,441 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,903 |
| Scotland A-Z | 0 | - | 4.73 | 41,017 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,461 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,533 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,472 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,968 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,414 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,082 |
| North America Map Quiz | 0 | - | 4.98 | 244,085 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,335 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,279 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,394 |
| Flags of North and South America | 0 | - | 4.99 | 365,860 |
| Australian States and Territories | 0 | - | 4.95 | 140,561 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,393 |
| Counties of England | 0 | - | 4.97 | 788,472 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,584 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,029 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,991 |
