| South America Map Quiz | 0 | - | 5.00 | 1,557,023 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,530 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,910 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,641 |
| States of Brazil | 0 | - | 4.97 | 89,802 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,701 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,110 |
| States of Mexico | 0 | - | 4.96 | 178,364 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,690 |
| Central American Countries | 0 | - | 4.98 | 157,384 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,623 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,746 |
| History of Mexico | 0 | - | 4.52 | 15,367 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,981 |
| Flags of North and South America | 0 | - | 4.99 | 377,304 |
| South American Physical Geography | 0 | - | 4.58 | 18,407 |
| Belize Country Quiz | 0 | - | 4.85 | 21,099 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,306 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,031 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,446 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,775 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,473 |
| The Only American Country ... | 0 | - | 4.92 | 122,242 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,140 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,937 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,751 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,420 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,403 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,940 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,944 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,851 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,141 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,908 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,854 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,975 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,055 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,285 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,420 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,595 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,849 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,896 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,799 |
| South American Cities on the Map | 0 | - | 4.52 | 35,561 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,729 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,763 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,870 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,828 |
| Word Chain - South America | 0 | - | 4.51 | 24,007 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,516 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,449 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,597 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,636 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,118 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,751 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,838 |
| Name the English Monarchs | 0 | - | 4.91 | 506,767 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,578 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,621 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,361 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,828 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,021 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,898 |
| Jamaica Country Quiz | 0 | - | 4.59 | 35,254 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,821 |
| Pixelated United States Map | 0 | - | 4.88 | 94,838 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,598 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,473 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,240 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,828 |
| Events in U.S. History | 0 | - | 4.41 | 28,832 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,203 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,105 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,318 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,341 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,392 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,416 |
| U.S. States By Population | 0 | - | 4.92 | 154,183 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,263 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,917 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,102 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,890 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,552 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,130 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,082 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,257 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,707 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,840 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,668 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,010 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,632 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,525 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,623 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,209 |
| Name that Greek Letter | 0 | - | 4.93 | 325,067 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,510 |
| Famous People from South America | 0 | - | 4.15 | 22,115 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,280 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,918 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,722 |
| Old West History | 0 | - | 4.34 | 15,306 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,536 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,988 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,787 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,501 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,057 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,030 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,907 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| The Trojan War | 0 | - | 4.83 | 40,005 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,018 |
| History of Italy | 0 | - | 4.55 | 32,158 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,612 |
| Roman Emperors | 0 | - | 4.95 | 121,267 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,829 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,431 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,107 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,113 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,785 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,463 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,780 |
| South America A-Z | 0 | - | 4.15 | 10,948 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,579 |
| Honduras Country Quiz | 0 | - | 4.52 | 24,032 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,718 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,795 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,154 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,212 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,855 |
| Territories of the United States | 0 | - | 4.80 | 52,635 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,899 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,139 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,538 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,615 |
| New York City Geography | 0 | - | 4.43 | 33,191 |
| History of Pennsylvania | 0 | - | 4.16 | 7,168 |
| History of Virginia | 0 | - | 4.33 | 11,643 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,889 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,468 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,904 |
| Ancient Greek Words | 0 | - | 4.93 | 112,526 |
| History of South Africa | 0 | - | 4.60 | 17,766 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,673 |
| Australian Capitals | 0 | - | 4.92 | 62,838 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,311 |
| Grenada Country Quiz | 0 | - | 4.62 | 19,020 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,857 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,294 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,757 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,680 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,284 |
| United States Country Quiz | 0 | - | 4.43 | 102,237 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,076 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,682 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,861 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,896 |
| U.S. History Multiple Choice #2 | 0 | - | 4.33 | 25,127 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,291 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,668 |
| Canada Country Quiz | 0 | - | 4.55 | 133,079 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,627 |
| Canada A-Z | 0 | - | 4.73 | 32,977 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,764 |
| Official European Union Languages | 0 | - | 4.97 | 239,866 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,693 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,031 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,151 |
| History of France | 0 | - | 4.61 | 57,650 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,562 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,952 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,530 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,468 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,288 |
| Geography of the British Empire | 0 | - | 4.48 | 39,851 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,737 |
| Asia Map Quiz | 0 | - | 4.99 | 925,565 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,219 |
| History of Iran | 0 | - | 4.66 | 16,425 |
| History of China | 0 | - | 4.35 | 57,602 |
| History of India | 0 | - | 4.62 | 21,519 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,240 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,155 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,169 |
| Countries by Founding Story | 0 | - | 4.95 | 77,838 |
| Independence from Whom | 0 | - | 4.99 | 213,170 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,523 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,874 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,494 |
| Australia Map Quiz | 0 | - | 4.95 | 346,250 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,207 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,460 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,772 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,198 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,914 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,821 |
