| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,122,967 |
| US States Quiz | 0 | - | 5.00 | 12,241,848 |
| Biggest Cities in the United States | 0 | - | 4.93 | 707,116 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,336,537 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,417 |
| World Capitals Quiz | 0 | - | 5.00 | 3,914,960 |
| Country Flags Quiz #1 | 0 | - | 4.95 | 2,141,959 |
| Country Flags Quiz #2 | 0 | - | 4.97 | 882,773 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 591,419 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,179,849 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,166,039 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,670 |
| Island Countries Quiz | 0 | - | 4.99 | 576,361 |
| Communist Countries in History | 0 | - | 4.47 | 382,830 |
| Counties of England Quiz | 0 | - | 4.95 | 575,208 |
| United States Immigration by Country | 0 | - | 4.71 | 131,568 |
| Ancient City to Country | 0 | - | 4.78 | 83,406 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,055 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,749 |
| Africa Capitals Quiz | 0 | - | 4.99 | 527,119 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,449 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,465,050 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,249,494 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,054 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,877 |
| Flags of Europe Quiz | 0 | - | 4.99 | 858,894 |
| Countries that Start with A | 0 | - | 4.96 | 1,627,568 |
| Countries that Start with B | 0 | - | 4.94 | 1,765,104 |
| Countries that Start with C | 0 | - | 4.95 | 1,398,645 |
| Countries that Start with D | 0 | - | 4.96 | 462,881 |
| Countries that Start with E | 0 | - | 4.93 | 1,031,422 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,738 |
| Countries that Start with I | 0 | - | 4.90 | 975,626 |
| Countries that Start with K | 0 | - | 4.94 | 571,149 |
| Countries that Start with L | 0 | - | 4.98 | 812,432 |
| Countries that Start with N | 0 | - | 4.90 | 833,715 |
| Countries that Start with P | 0 | - | 4.94 | 921,404 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,986 |
| Countries that Start with T | 0 | - | 4.89 | 758,139 |
| Countries that Start with U | 0 | - | 4.97 | 684,035 |
| Countries that Start with M | 0 | - | 4.95 | 1,059,257 |
| Top World Languages | 0 | - | 4.89 | 576,986 |
| Countries in World War II | 0 | - | 4.47 | 679,394 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 570,636 |
| Countries in World War I | 0 | - | 4.92 | 182,647 |
| Countries of Africa | 0 | - | 5.00 | 1,731,458 |
| Countries of South America | 0 | - | 5.00 | 622,195 |
| Countries of North America Quiz | 0 | - | 5.00 | 705,472 |
| Countries of Oceania | 0 | - | 5.00 | 711,677 |
| Vietnam War Countries | 0 | - | 4.78 | 76,611 |
| UK Immigration by Country | 0 | - | 4.92 | 112,678 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,075 |
| Asia Capitals Quiz | 0 | - | 4.97 | 501,105 |
| Countries "Ruled" by King Charles III | 0 | - | 4.73 | 65,001 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,013 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,936 |
| Independence from Whom | 0 | - | 4.99 | 152,794 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,458 |
| Political Movements by Country | 0 | - | 4.49 | 61,891 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,557 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,513 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,915 |
| Biggest Cities in History | 0 | - | 4.49 | 70,465 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,531 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,781 |
| Random Capital to Country | 0 | - | 4.99 | 2,071,608 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,277 |
| Random Country to Capital | 0 | - | 4.98 | 693,749 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,302 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 524,398 |
| Central America and Caribbean Map Quiz | 0 | - | 4.86 | 787,909 |
| Important Cities in European History | 0 | - | 4.49 | 88,311 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 103,287 |
| All Country Flags of the World | 0 | - | 5.00 | 2,268,059 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,437 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,181 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,156 |
| Historical City to Country | 0 | - | 4.81 | 66,332 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,716 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,651 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.96 | 122,634 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,717 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.87 | 52,449 |
| United States Map Quiz | 0 | - | 4.96 | 3,578,419 |
| Canada Immigration by Country | 0 | - | 4.41 | 51,951 |
| Europe Map Quiz | 0 | - | 4.99 | 3,718,492 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,169,168 |
| Africa Map Quiz | 0 | - | 5.00 | 1,757,088 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,246,389 |
| Oceania Map Quiz | 0 | - | 4.97 | 501,972 |
| South America Map Quiz | 0 | - | 4.99 | 1,255,944 |
| Australian Immigration by Country | 0 | - | 4.52 | 53,505 |
| WWII Geography | 0 | - | 4.73 | 88,521 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,322,228 |
| City-States | 0 | - | 4.53 | 31,464 |
| France Immigration by Country | 0 | - | 4.79 | 59,558 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,846 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 55,690 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,007 |
| Former Countries | 0 | - | 4.52 | 100,306 |
| Countries by Net Migration | 0 | - | 4.57 | 58,000 |
| Countries with American Expatriates | 0 | - | 4.52 | 38,116 |
| Overseas Chinese Population | 0 | - | 4.56 | 35,662 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,129 |
| Guerrillas by Country | 0 | - | 4.39 | 34,847 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.67 | 9,000 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,585 |
| Asia Map Quiz | 0 | - | 4.99 | 652,571 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 996,087 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,807 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,625 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,875,212 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,308 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,643,426 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,514 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,818 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,626 |
| Most Populous Countries by Year | 0 | - | 4.76 | 78,930 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,242 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,108 |
| Total United States Immigration by Country | 0 | - | 4.94 | 87,362 |
| African Diaspora - Top 10 Countries | 0 | - | 4.84 | 59,840 |
| European Diaspora - Top 11 Countries | 0 | - | 4.87 | 73,509 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.81 | 32,365 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.84 | 41,583 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.47 | 41,061 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,779 |
| Countries With the Most Expats | 0 | - | 4.67 | 41,444 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.65 | 34,625 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,787 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,397 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,890 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,478 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,834 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,377 |
| Cities by Founder and Date | 0 | - | 4.50 | 25,965 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,300 |
| Cities Founded by the French in North America | 0 | - | 4.54 | 35,382 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,458 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,246 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,341 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,877 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,914 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,225 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,297 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,980 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,973 |
| People Born on Islands | 0 | - | 4.41 | 37,069 |
| Colonies of Africa with a Map | 0 | - | 4.73 | 41,647 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 116,131 |
| Former Flags | 0 | - | 4.96 | 70,544 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,584 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,617 |
| Countries with the Most Immigrants per Capita | 0 | - | 4.45 | 33,729 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,268 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.50 | 27,707 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.64 | 45,815 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,980 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,648 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,379 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,092,760 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,195 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,703 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,791 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,362 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,255 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,202 |
| Battle to Country | 0 | - | 4.89 | 30,544 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,482 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,928 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,649 |
| Cities by Former Name | 0 | - | 4.82 | 62,617 |
| Countries by Former Name | 0 | - | 4.99 | 82,514 |
| Sweden Immigration by Country | 0 | - | 4.51 | 37,074 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,648 |
| Germany Immigration by Country | 0 | - | 4.77 | 44,150 |
| Netherlands Immigration by Country | 0 | - | 4.91 | 25,383 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,491,177 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,781 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 33,015 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,591 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,797 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,513 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,506 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,190,373 |
| Countries by Founding Story | 0 | - | 4.91 | 48,778 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 50,009 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 97,991 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 41,074 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 65,670 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.82 | 32,673 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 52,189 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,263 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.77 | 13,502 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.96 | 46,460 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.95 | 18,117 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 52,833 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 49,865 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.84 | 34,785 |
| City Where It Happened #3 | 0 | - | 4.42 | 33,228 |
