| Countries of the Soviet Union | 0 | - | 4.98 | 193,929 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,288 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,553 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,856 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,471 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,665 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,491 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,718 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,892 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,055 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,392 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,445 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,236 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,236 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,167 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,461 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,811 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,590 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,583 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,841 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,528 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,302 |
| Europe Capital to Country | 0 | - | 4.99 | 248,127 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,624 |
| European Capitals by Map | 0 | - | 4.99 | 136,655 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,304 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,722 |
| European Coastal Capitals | 0 | - | 4.95 | 89,865 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,060 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,427 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,004 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,379 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,123 |
| Official Cities in the UK | 0 | - | 4.89 | 280,846 |
| Cities in European History #1 | 0 | - | 4.63 | 133,234 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,489 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,261 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,759 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,821 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,325 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,767 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,847 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,228 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,052 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,304 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,190 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,147 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,086 |
| Random European Capital to Country | 0 | - | 4.98 | 189,359 |
| Random European Country to Capital | 0 | - | 4.92 | 147,581 |
| UK Immigration by Country | 0 | - | 4.94 | 139,777 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,359 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,918 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,422 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,314 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,762 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,321 |
| Every European Country Shape | 0 | - | 4.96 | 200,355 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,237 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,216 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,751 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,219 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,369 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,352 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,002 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,149 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,199 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,175 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,948 |
| Biggest British Empire Countries | 0 | - | 4.77 | 98,254 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,939 |
| Hindu Countries | 0 | - | 4.86 | 49,637 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,336 |
| Random European Flag to Country | 0 | - | 4.89 | 181,035 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,612 |
| Political Movements by Country | 0 | - | 4.46 | 72,291 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,419 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,776 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,713 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,999 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,113 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,833 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,053 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,054 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,287 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,900 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,563 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,631 |
| Independence from Whom | 0 | - | 4.99 | 209,846 |
| National Founders | 0 | - | 4.40 | 83,670 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,869 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,042 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,157 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,244 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,143 |
| Countries of Africa | 0 | - | 5.00 | 2,510,397 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,429 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,229 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,739 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,353 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,002 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,653 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,318 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,801 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,937 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,570 |
| Asia Map Quiz | 0 | - | 4.99 | 907,792 |
| Australia Map Quiz | 0 | - | 4.94 | 342,666 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,519 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,508 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,729 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,661 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,228,401 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,294 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,366 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,397 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,351 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,695 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,633 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,888 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,308 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,432 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,984 |
| Cities by Former Name | 0 | - | 4.84 | 91,040 |
| Former Capitals | 0 | - | 4.88 | 71,169 |
| Asia Capital to Country | 0 | - | 4.96 | 125,834 |
| African Capitals by Map | 0 | - | 4.99 | 132,298 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,309 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,223 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,183 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,455 |
| Recently Independent Countries | 0 | - | 4.98 | 158,065 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,194 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,911 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,650 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,893 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,718 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,554 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,652 |
| Countries of the Middle East | 0 | - | 4.96 | 199,126 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,357 |
| The Only European Country ... | 0 | - | 4.91 | 214,102 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,319 |
| Slavic Countries | 0 | - | 4.96 | 110,927 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,630 |
| African Island Countries | 0 | - | 4.96 | 100,862 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,352 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,069 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,730 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,689 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,292 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,255 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,534 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,693 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,808 |
| Communist Countries in History | 0 | - | 4.63 | 492,817 |
| Countries by Former Name | 0 | - | 4.99 | 124,374 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,828 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,336 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,871 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,856 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,593 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,255 |
| Historical City to Country | 0 | - | 4.84 | 78,173 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,732 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,785 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,876 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,188 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,233 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,391 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,643 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,366 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,482 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,332 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,556 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,967 |
| Scotland A-Z | 0 | - | 4.73 | 41,068 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,355 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,822 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,348 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,532 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,890 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,283 |
| North America Map Quiz | 0 | - | 4.98 | 244,812 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,575 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,010 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,472 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,411 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,022 |
| Flags of North and South America | 0 | - | 4.99 | 367,967 |
| Australian States and Territories | 0 | - | 4.96 | 140,989 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,316 |
| Counties of England | 0 | - | 4.97 | 789,897 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,198 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,232 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,036 |
| African East Coast | 0 | - | 4.96 | 95,135 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,006 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,759 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,588 |
