| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,327,435 |
| US States Quiz | 0 | - | 5.00 | 12,325,454 |
| Biggest Cities in the United States | 0 | - | 4.93 | 710,341 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,343,268 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 738,562 |
| World Capitals Quiz | 0 | - | 5.00 | 3,932,553 |
| Country Flags Quiz #1 | 0 | - | 4.95 | 2,149,023 |
| Country Flags Quiz #2 | 0 | - | 4.97 | 886,333 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 593,646 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,184,722 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,170,111 |
| Biggest Countries by Area | 0 | - | 4.99 | 830,690 |
| Island Countries Quiz | 0 | - | 4.99 | 578,270 |
| Communist Countries in History | 0 | - | 4.48 | 384,583 |
| Counties of England Quiz | 0 | - | 4.95 | 578,659 |
| United States Immigration by Country | 0 | - | 4.66 | 140,912 |
| Ancient City to Country | 0 | - | 4.74 | 83,956 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,592 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,154 |
| Africa Capitals Quiz | 0 | - | 4.99 | 530,222 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,566 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,487,389 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,259,251 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,695 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,971 |
| Flags of Europe Quiz | 0 | - | 4.99 | 864,212 |
| Countries that Start with A | 0 | - | 4.96 | 1,635,546 |
| Countries that Start with B | 0 | - | 4.94 | 1,773,121 |
| Countries that Start with C | 0 | - | 4.95 | 1,404,910 |
| Countries that Start with E | 0 | - | 4.93 | 1,036,411 |
| Countries that Start with G | 0 | - | 4.95 | 1,134,281 |
| Countries that Start with I | 0 | - | 4.91 | 979,978 |
| Countries that Start with K | 0 | - | 4.95 | 574,741 |
| Countries that Start with L | 0 | - | 4.98 | 816,508 |
| Countries that Start with N | 0 | - | 4.91 | 837,986 |
| Countries that Start with P | 0 | - | 4.94 | 925,915 |
| Countries that Start with S | 0 | - | 4.96 | 1,361,390 |
| Countries that Start with T | 0 | - | 4.89 | 761,707 |
| Countries that Start with U | 0 | - | 4.97 | 687,266 |
| Countries that Start with M | 0 | - | 4.95 | 1,064,093 |
| Top World Languages | 0 | - | 4.89 | 580,363 |
| Countries in World War II | 0 | - | 4.48 | 683,147 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 573,331 |
| Countries in World War I | 0 | - | 4.91 | 183,444 |
| Countries of Africa | 0 | - | 5.00 | 1,744,149 |
| Countries of South America | 0 | - | 5.00 | 627,237 |
| Countries of North America Quiz | 0 | - | 5.00 | 710,970 |
| Countries of Oceania | 0 | - | 5.00 | 717,244 |
| Vietnam War Countries | 0 | - | 4.78 | 76,933 |
| UK Immigration by Country | 0 | - | 4.92 | 113,117 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,423 |
| Asia Capitals Quiz | 0 | - | 4.97 | 503,589 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,250 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,719 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,282 |
| Independence from Whom | 0 | - | 4.99 | 153,266 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,659 |
| Political Movements by Country | 0 | - | 4.50 | 62,086 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,994 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,833 |
| Former Countries by Capital | 0 | - | 4.41 | 97,530 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,353 |
| Biggest Cities in History | 0 | - | 4.47 | 70,832 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,780 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,905 |
| Random Capital to Country | 0 | - | 4.99 | 2,080,527 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,508 |
| Random Country to Capital | 0 | - | 4.98 | 696,671 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,550 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 525,868 |
| Central America and Caribbean Map Quiz | 0 | - | 4.86 | 790,022 |
| Important Cities in European History | 0 | - | 4.50 | 88,521 |
| Confederate States of the U.S. Civil War | 0 | - | 4.92 | 103,690 |
| All Country Flags of the World | 0 | - | 5.00 | 2,289,048 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 182,200 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,352 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,325 |
| Historical City to Country | 0 | - | 4.81 | 66,530 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,146 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,873 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.96 | 123,498 |
| Countries Settled by Vikings | 0 | - | 4.92 | 92,007 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.88 | 52,940 |
| United States Map Quiz | 0 | - | 4.96 | 3,587,883 |
| Canada Immigration by Country | 0 | - | 4.42 | 52,114 |
| Europe Map Quiz | 0 | - | 4.99 | 3,735,457 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,173,050 |
| Africa Map Quiz | 0 | - | 5.00 | 1,762,813 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,250,711 |
| Oceania Map Quiz | 0 | - | 4.97 | 504,097 |
| South America Map Quiz | 0 | - | 4.99 | 1,261,132 |
| Australian Immigration by Country | 0 | - | 4.53 | 53,681 |
| WWII Geography | 0 | - | 4.74 | 89,157 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,343,247 |
| City-States | 0 | - | 4.53 | 31,590 |
| France Immigration by Country | 0 | - | 4.79 | 59,885 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 129,215 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 55,943 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,413 |
| Former Countries | 0 | - | 4.53 | 100,587 |
| Countries by Net Migration | 0 | - | 4.58 | 58,278 |
| Countries with American Expatriates | 0 | - | 4.53 | 38,215 |
| Overseas Chinese Population | 0 | - | 4.57 | 35,878 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,403 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 23,685 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,793 |
| Asia Map Quiz | 0 | - | 4.99 | 657,211 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 1,000,413 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,916 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,211 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,889,894 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,452 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,657,163 |
| Biggest World Cities in 1850 | 0 | - | 4.53 | 47,688 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,300 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 38,795 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,497 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,944 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,852 |
| Total United States Immigration by Country | 0 | - | 4.94 | 87,699 |
| African Diaspora - Top 10 Countries | 0 | - | 4.84 | 60,045 |
| European Diaspora - Top 11 Countries | 0 | - | 4.87 | 73,771 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.82 | 32,580 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.84 | 41,824 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.47 | 41,265 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 44,932 |
| Countries of the Indian Diaspora | 0 | - | 4.41 | 47,081 |
| Countries With the Most Expats | 0 | - | 4.71 | 41,673 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.66 | 35,020 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,075 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,648 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,062 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,629 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,186 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,695 |
| Cities by Founder and Date | 0 | - | 4.50 | 26,033 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,944 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 35,479 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,677 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,460 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,529 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,081 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,320 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,377 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,456 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,211 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,073 |
| People Born on Islands | 0 | - | 4.41 | 37,191 |
| Colonies of Africa with a Map | 0 | - | 4.73 | 41,880 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 116,804 |
| Former Flags | 0 | - | 4.96 | 70,913 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,903 |
| Roman Provinces on a Map | 0 | - | 4.74 | 25,812 |
| Countries with the Most Immigrants per Capita | 0 | - | 4.46 | 33,858 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,772 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.51 | 27,788 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.64 | 46,049 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,135 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,520 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 30,535 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,099,756 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,440 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,259 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,425 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 106,217 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,692 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,674 |
| Battle to Country | 0 | - | 4.89 | 30,672 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 84,994 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 67,196 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,748 |
| Cities by Former Name | 0 | - | 4.82 | 62,861 |
| Countries by Former Name | 0 | - | 4.98 | 82,876 |
| Sweden Immigration by Country | 0 | - | 4.50 | 37,266 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 59,006 |
| Germany Immigration by Country | 0 | - | 4.77 | 44,369 |
| Netherlands Immigration by Country | 0 | - | 4.91 | 25,566 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,542,820 |
| Vatican City Country Quiz | 0 | - | 4.44 | 31,984 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 33,243 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,674 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 37,185 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 58,969 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.74 | 28,785 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,201,269 |
| Countries by Founding Story | 0 | - | 4.91 | 48,934 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 50,406 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.98 | 98,814 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.84 | 41,348 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.99 | 66,110 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.84 | 32,921 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 52,536 |
| Countries of the World in 1444 | 0 | - | 4.95 | 41,606 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.77 | 13,726 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.95 | 46,893 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.95 | 18,284 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 53,174 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 50,334 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.84 | 35,244 |
| City Where It Happened #3 | 0 | - | 4.42 | 33,335 |
