| Countries of the Soviet Union | 0 | - | 4.98 | 193,681 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,172 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,347 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,548 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,178 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,151 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,341 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,602 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,816 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,652 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,066 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,087 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,145 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,028 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,035 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,052 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,390 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,347 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,401 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,675 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,475 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,652 |
| Europe Capital to Country | 0 | - | 4.99 | 247,254 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,260 |
| European Capitals by Map | 0 | - | 4.99 | 135,889 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,058 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,517 |
| European Coastal Capitals | 0 | - | 4.95 | 89,627 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,504 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,290 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,773 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,848 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,686 |
| Official Cities in the UK | 0 | - | 4.89 | 280,097 |
| Cities in European History #1 | 0 | - | 4.63 | 132,942 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,322 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 117,998 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,639 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,691 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,256 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,753 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,549 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,918 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,746 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,072 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,623 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,945 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,662 |
| Random European Capital to Country | 0 | - | 4.98 | 189,041 |
| Random European Country to Capital | 0 | - | 4.92 | 147,321 |
| UK Immigration by Country | 0 | - | 4.94 | 139,478 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,060 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,772 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,280 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,142 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,672 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,195 |
| Every European Country Shape | 0 | - | 4.95 | 199,818 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,122 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,601 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,111 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,135 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 137,944 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,692 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,926 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,141 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,123 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,736 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,217 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,836 |
| Hindu Countries | 0 | - | 4.85 | 49,439 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,128 |
| Random European Flag to Country | 0 | - | 4.89 | 180,699 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,578 |
| Political Movements by Country | 0 | - | 4.46 | 72,219 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,200 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,593 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,640 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,882 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,856 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,520 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,767 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,967 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,259 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,279 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,717 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,258 |
| Independence from Whom | 0 | - | 4.99 | 209,434 |
| National Founders | 0 | - | 4.40 | 83,612 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,576 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,578 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,187 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,665 |
| Countries of Africa | 0 | - | 5.00 | 2,503,947 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,276 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,040 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,599 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,306 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,949 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,405 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,420 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,436,905 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,346 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,527 |
| Asia Map Quiz | 0 | - | 4.99 | 905,593 |
| Australia Map Quiz | 0 | - | 4.94 | 342,200 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,036 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,783 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 217,956 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,245 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,815 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,371 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,025 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,130 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,493 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,475 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,705 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,080 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,232 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,629 |
| Cities by Former Name | 0 | - | 4.84 | 90,857 |
| Former Capitals | 0 | - | 4.88 | 71,072 |
| Asia Capital to Country | 0 | - | 4.96 | 125,601 |
| African Capitals by Map | 0 | - | 4.99 | 132,030 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,946 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,138 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,319 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Recently Independent Countries | 0 | - | 4.98 | 157,853 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,696 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,742 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,485 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,694 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,313 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,006 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,576 |
| Countries of the Middle East | 0 | - | 4.96 | 198,680 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,122 |
| The Only European Country ... | 0 | - | 4.91 | 213,445 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,805 |
| Slavic Countries | 0 | - | 4.96 | 110,762 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,288 |
| African Island Countries | 0 | - | 4.96 | 100,640 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,852 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,552 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,298 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,655 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,237 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,150 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,452 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,678 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,587 |
| Communist Countries in History | 0 | - | 4.63 | 492,052 |
| Countries by Former Name | 0 | - | 4.99 | 124,135 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 215,995 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,246 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,569 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,342 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,889 |
| Historical City to Country | 0 | - | 4.84 | 78,079 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,453 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,569 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,662 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,098 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,064 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,177 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,451 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,138 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,311 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,123 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,411 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,882 |
| Scotland A-Z | 0 | - | 4.73 | 41,006 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,245 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,171 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,931 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,389 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,715 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,055 |
| North America Map Quiz | 0 | - | 4.98 | 243,946 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,274 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,766 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,155 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,253 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,104 |
| Flags of North and South America | 0 | - | 4.99 | 365,297 |
| Australian States and Territories | 0 | - | 4.95 | 140,539 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,189 |
| Counties of England | 0 | - | 4.97 | 788,206 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,482 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,003 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,986 |
| African East Coast | 0 | - | 4.96 | 94,900 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,886 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 70,567 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,221 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,503 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,428 |
