| Countries of the Soviet Union | 0 | - | 4.98 | 193,778 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,207 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,415 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,396 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,266 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,645 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,291 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,639 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,722 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,174 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,190 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,170 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,841 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,100 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,077 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,153 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,474 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,429 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,905 |
| Europe Capital to Country | 0 | - | 4.99 | 247,425 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,386 |
| European Capitals by Map | 0 | - | 4.99 | 136,121 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,124 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,570 |
| European Coastal Capitals | 0 | - | 4.95 | 89,703 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,663 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,467 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,733 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,494 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,828 |
| Official Cities in the UK | 0 | - | 4.89 | 280,371 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,372 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,068 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,675 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,736 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,283 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,334 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,850 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,020 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,035 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,864 |
| Cities in European History #1 | 0 | - | 4.63 | 133,054 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,146 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,809 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,769 |
| UK Immigration by Country | 0 | - | 4.94 | 139,540 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,157 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,826 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,331 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,196 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,761 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,652 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,069 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,805 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,167 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,141 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,987 |
| Random European Capital to Country | 0 | - | 4.98 | 189,135 |
| Random European Country to Capital | 0 | - | 4.92 | 147,386 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,265 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,859 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,205 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,709 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,238 |
| Every European Country Shape | 0 | - | 4.96 | 200,042 |
| Political Movements by Country | 0 | - | 4.46 | 72,246 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,147 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,636 |
| 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 | 4,729,619 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,016 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,784 |
| Hindu Countries | 0 | - | 4.85 | 49,519 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,742 |
| Random European Flag to Country | 0 | - | 4.89 | 180,831 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,592 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,276 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,688 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,660 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,927 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,291 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,953 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,631 |
| Asia Map Quiz | 0 | - | 4.99 | 906,572 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,033 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,639 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,865 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,004 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| Cities by Former Name | 0 | - | 4.84 | 90,924 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,880 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,432 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,311 |
| Recently Independent Countries | 0 | - | 4.98 | 157,936 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,867 |
| Independence from Whom | 0 | - | 4.99 | 209,588 |
| National Founders | 0 | - | 4.40 | 83,638 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,671 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,773 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,450 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,969 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,819 |
| The Only European Country ... | 0 | - | 4.91 | 213,673 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,007 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,421 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,198 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,042 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,736 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,438 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,173 |
| Countries by Founding Story | 0 | - | 4.95 | 76,488 |
| Countries by Former Name | 0 | - | 4.99 | 124,227 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,859 |
| Countries of Africa | 0 | - | 5.00 | 2,506,284 |
| Historical City to Country | 0 | - | 4.84 | 78,109 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,329 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,105 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,638 |
| 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 | 1,375,535 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,863 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,757 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,407 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,883 |
| Australia Map Quiz | 0 | - | 4.94 | 342,367 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,207 |
| African East Coast | 0 | - | 4.96 | 94,994 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,344 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,399 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,549 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,110 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,136 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,845 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,233 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,214 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,560 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,525 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,760 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,156 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,305 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,739 |
| Former Capitals | 0 | - | 4.88 | 71,121 |
| Asia Capital to Country | 0 | - | 4.96 | 125,690 |
| African Capitals by Map | 0 | - | 4.99 | 132,102 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,052 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,057 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,163 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,611 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,402 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,808 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,313 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,201 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,604 |
| Countries of the Middle East | 0 | - | 4.96 | 198,817 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,204 |
| Slavic Countries | 0 | - | 4.96 | 110,812 |
| African Island Countries | 0 | - | 4.96 | 100,727 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,663 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,258 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,476 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,686 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,662 |
| Communist Countries in History | 0 | - | 4.63 | 492,316 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,093 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,142 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,654 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,427 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,020 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,561 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,657 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,717 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,130 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,127 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,252 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,527 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,204 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,367 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,192 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,467 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,920 |
| Scotland A-Z | 0 | - | 4.73 | 41,026 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,731 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,671 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,814 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,097 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,435 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,149 |
| North America Map Quiz | 0 | - | 4.98 | 244,240 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,417 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,317 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,871 |
| Flags of North and South America | 0 | - | 4.99 | 366,585 |
| Australian States and Territories | 0 | - | 4.95 | 140,601 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,638 |
| Counties of England | 0 | - | 4.97 | 788,816 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,737 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,097 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,000 |
