| South America Map Quiz | 0 | - | 5.00 | 1,550,511 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,988 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,019 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,169 |
| States of Brazil | 0 | - | 4.97 | 88,291 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,922 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,584 |
| States of Mexico | 0 | - | 4.96 | 176,353 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,834 |
| Central American Countries | 0 | - | 4.98 | 156,570 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,667 |
| History of Mexico | 0 | - | 4.58 | 15,319 |
| United States Map Quiz | 0 | - | 4.98 | 4,160,710 |
| Flags of North and South America | 0 | - | 4.99 | 373,593 |
| South American Physical Geography | 0 | - | 4.58 | 18,357 |
| Belize Country Quiz | 0 | - | 4.85 | 20,995 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,227 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,289 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,004 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,878 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,099 |
| The Only American Country ... | 0 | - | 4.92 | 121,697 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,185 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,868 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,819 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,619 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,314 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,279 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,831 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,846 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,059 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,263 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,529 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,567 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,529 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,199 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,982 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,535 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,588 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,841 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,140 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| South American Cities on the Map | 0 | - | 4.53 | 35,441 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,859 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,240 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,522 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,951 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,265 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,513 |
| Word Chain - South America | 0 | - | 4.51 | 23,916 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,004 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,740 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,627 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,342 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,904 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,285 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,764 |
| Name the English Monarchs | 0 | - | 4.91 | 503,230 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,438 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,169 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,600 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,754 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,741 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,107 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,637 |
| Pixelated United States Map | 0 | - | 4.87 | 94,343 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,788 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,852 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,702,397 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,894 |
| Events in U.S. History | 0 | - | 4.41 | 28,688 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,121 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,988 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,533 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,532 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,125 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,421 |
| U.S. States By Population | 0 | - | 4.92 | 153,625 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,549 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,495 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,609 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,394 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,251 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,692 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,145 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,853 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,320 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,608 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,343 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,637 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,418 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,444 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,933 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,042 |
| Name that Greek Letter | 0 | - | 4.93 | 323,951 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,464 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,370 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,491 |
| Famous People from South America | 0 | - | 4.15 | 21,999 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,617 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,618 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,603 |
| Old West History | 0 | - | 4.34 | 15,280 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,523 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,943 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,740 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,836 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,530 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,063 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,936 |
| History of Russia Quiz | 0 | - | 4.47 | 31,938 |
| The Trojan War | 0 | - | 4.83 | 39,758 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,988 |
| History of Italy | 0 | - | 4.55 | 32,010 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,582 |
| Roman Emperors | 0 | - | 4.95 | 120,182 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,684 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,261 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,904 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,621 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,371 |
| South America A-Z | 0 | - | 4.13 | 10,914 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,444 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,892 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,599 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,703 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,052 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,107 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,786 |
| Territories of the United States | 0 | - | 4.80 | 52,424 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,707 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,545 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,229 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,721 |
| New York City Geography | 0 | - | 4.42 | 33,112 |
| History of Pennsylvania | 0 | - | 4.16 | 7,139 |
| History of Virginia | 0 | - | 4.31 | 11,603 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,641 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,151 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,277 |
| Ancient Greek Words | 0 | - | 4.93 | 111,739 |
| History of India | 0 | - | 4.62 | 21,442 |
| Africa Map Quiz | 0 | - | 5.00 | 2,119,368 |
| History of South Africa | 0 | - | 4.60 | 17,700 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,983 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,304 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,945 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,768 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,183 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,551 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,592 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,193 |
| United States Country Quiz | 0 | - | 4.43 | 101,602 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,907 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,012 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,991 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,362 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,079 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,250 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,598 |
| Canada Country Quiz | 0 | - | 4.54 | 132,556 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,256 |
| Canada A-Z | 0 | - | 4.73 | 32,848 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,212 |
| Official European Union Languages | 0 | - | 4.97 | 238,659 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,958 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,500 |
| History of Austria | 0 | - | 4.70 | 17,877 |
| Geography of the French Empire | 0 | - | 4.45 | 27,117 |
| The French Revolution | 0 | - | 4.47 | 24,015 |
| History of France | 0 | - | 4.59 | 57,112 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,460 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,196 |
| The Vikings! | 0 | - | 4.46 | 28,354 |
| The Portuguese Empire | 0 | - | 4.58 | 12,073 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,369 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,563 |
| Geography of the British Empire | 0 | - | 4.48 | 39,709 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,811 |
| Asia Map Quiz | 0 | - | 4.99 | 917,729 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,008 |
| History of Iran | 0 | - | 4.66 | 16,362 |
| History of China | 0 | - | 4.37 | 57,247 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,342 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,778 |
| Countries by Founding Story | 0 | - | 4.95 | 77,289 |
| Independence from Whom | 0 | - | 4.99 | 211,878 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,571 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,546 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,473 |
| Countries of Africa | 0 | - | 5.00 | 2,540,238 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,930 |
| African East Coast | 0 | - | 4.96 | 96,139 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,997 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,804 |
| Australia Map Quiz | 0 | - | 4.95 | 344,809 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,965 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,201 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,770 |
