| Canada Provinces and Territories | 0 | - | 5.00 | 341,310 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,123 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,827 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,477 |
| North America Map Quiz | 0 | - | 4.98 | 247,634 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,651 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,035 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,472 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,496 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,697 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,544 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,837 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,354 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,161 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,320 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,731 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,814 |
| Central American Countries | 0 | - | 4.98 | 155,882 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,852 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,508 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,373 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,765 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,505 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,041 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,419 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,110 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,369 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,874 |
| History of Mexico | 0 | - | 4.58 | 15,291 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,294 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,159 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,044 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,365 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,509 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,082 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,274 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,251 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,089 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,871 |
| Territories of the United States | 0 | - | 4.79 | 52,332 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,571 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,254 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,074 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,845 |
| New York City Geography | 0 | - | 4.42 | 33,054 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,693 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,047 |
| Old West History | 0 | - | 4.33 | 15,258 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,517 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,913 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,707 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,447 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,174 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,388 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,876 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,116 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,277 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,696 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,598 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,605 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,330 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,776 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,221 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,194 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,424 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,256 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,694 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,601 |
| 75 Americans Named John | 0 | - | 4.41 | 23,889 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,957 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,571 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,973 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,566 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,115 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,340 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,617 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,757 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,719 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,353 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,384 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,888 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,821 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,262 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,686 |
| Name the English Monarchs | 0 | - | 4.91 | 501,460 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,693 |
| American Inventions #1 | 0 | - | 3.63 | 31,498 |
| American Inventions #2 | 0 | - | 3.93 | 15,857 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,757 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,835 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,498 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,052 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,228 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,564 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,089 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,126 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,254 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,017 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,188 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,539 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,064 |
| Name that Greek Letter | 0 | - | 4.93 | 323,079 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,916 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,519 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,093 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,801 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,860 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,337 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,101 |
| Which Island in the United States? | 0 | - | 4.29 | 29,423 |
| American Foods | 0 | - | 3.66 | 39,358 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,126 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,220 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,725 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,289 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,867 |
| U.S. Analogies | 0 | - | 4.27 | 19,654 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,327 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,667 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,515 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,330 |
| US States with the Most Executions | 0 | - | 4.51 | 26,385 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,034 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,914 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,109 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,677 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,767 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,526 |
| Canada Decoder | 0 | - | 4.12 | 18,705 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,285 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,294 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,205 |
| History of Russia Quiz | 0 | - | 4.49 | 31,879 |
| The Trojan War | 0 | - | 4.83 | 39,645 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,529 |
| History of Italy | 0 | - | 4.55 | 31,935 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,418 |
| Roman Emperors | 0 | - | 4.95 | 119,652 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,611 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,164 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,665 |
| Australian Capitals | 0 | - | 4.92 | 62,694 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,666 |
| Famous Caribbean People | 0 | - | 4.37 | 12,601 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,013 |
| North America Cities by Map | 0 | - | 4.41 | 47,758 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,560 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,315 |
| California Multiple Choice | 0 | - | 4.40 | 28,087 |
| San Francisco Trivia | 0 | - | 4.32 | 15,692 |
| San Francisco A-Z | 0 | - | 4.18 | 9,559 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,180 |
| Boston City Trivia | 0 | - | 4.38 | 24,159 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,638 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,995 |
| Official European Union Languages | 0 | - | 4.97 | 238,118 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,604 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,285 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,538 |
| Ancient Greek Words | 0 | - | 4.93 | 111,346 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,519 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,841 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,942 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,578 |
| Countries by Founding Story | 0 | - | 4.95 | 77,045 |
| Independence from Whom | 0 | - | 4.99 | 211,260 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,662 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,363 |
| History of India | 0 | - | 4.61 | 21,395 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,557 |
| History of South Africa | 0 | - | 4.60 | 17,660 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,541 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,768 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,832 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,073 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,325 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,438 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,425 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,593 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,325 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,834 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,563 |
| Canada Country Quiz | 0 | - | 4.54 | 132,315 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,055 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,480 |
| History of Austria | 0 | - | 4.70 | 17,834 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| History of France | 0 | - | 4.59 | 56,824 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,654 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,243 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,998 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,047 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,306 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,296 |
| Geography of the British Empire | 0 | - | 4.48 | 39,630 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,461 |
