| Canada Provinces and Territories | 0 | - | 5.00 | 341,577 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,349 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,659 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,999 |
| North America Map Quiz | 0 | - | 4.98 | 247,852 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,669 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,061 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,611 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,508 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,743 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,567 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,918 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,379 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,226 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,359 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,789 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,838 |
| Central American Countries | 0 | - | 4.98 | 155,925 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,996 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,532 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,404 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,812 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,604 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,076 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,435 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,130 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,404 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,897 |
| History of Mexico | 0 | - | 4.58 | 15,292 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,302 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,331 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,059 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,411 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,531 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,117 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,453 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,714 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,093 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,900 |
| Territories of the United States | 0 | - | 4.79 | 52,342 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,595 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,298 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,099 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,869 |
| New York City Geography | 0 | - | 4.42 | 33,065 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,721 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,228 |
| Old West History | 0 | - | 4.33 | 15,260 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,517 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,917 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,708 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,472 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,177 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,415 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,935 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 76,902 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,341 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,748 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,650 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,650 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,361 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,796 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,285 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,208 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,433 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,265 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,697 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,608 |
| 75 Americans Named John | 0 | - | 4.41 | 23,892 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,973 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,594 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,993 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,615 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,130 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,346 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,629 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,784 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,755 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,364 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,424 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,909 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,846 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,297 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,955 |
| Name the English Monarchs | 0 | - | 4.91 | 501,737 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,701 |
| American Inventions #1 | 0 | - | 3.63 | 31,498 |
| American Inventions #2 | 0 | - | 3.93 | 15,858 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,760 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,690,077 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,573 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,054 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,229 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,573 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,096 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,144 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,271 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,064 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,199 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,541 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,355 |
| Name that Greek Letter | 0 | - | 4.93 | 323,163 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,957 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,567 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,128 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,052 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,943 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,360 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,103 |
| Which Island in the United States? | 0 | - | 4.29 | 29,444 |
| American Foods | 0 | - | 3.66 | 39,363 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,128 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,230 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,733 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,307 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,877 |
| U.S. Analogies | 0 | - | 4.27 | 19,660 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,337 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,668 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,529 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,353 |
| US States with the Most Executions | 0 | - | 4.51 | 26,386 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,041 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,934 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,125 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,684 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,775 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,548 |
| Canada Decoder | 0 | - | 4.12 | 18,707 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,314 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,301 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,484 |
| History of Russia Quiz | 0 | - | 4.49 | 31,886 |
| The Trojan War | 0 | - | 4.83 | 39,663 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,594 |
| History of Italy | 0 | - | 4.55 | 31,941 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,437 |
| Roman Emperors | 0 | - | 4.95 | 119,716 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,625 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,178 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,806 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,761 |
| Australian Capitals | 0 | - | 4.92 | 62,701 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,677 |
| Famous Caribbean People | 0 | - | 4.37 | 12,609 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,016 |
| North America Cities by Map | 0 | - | 4.41 | 47,770 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,563 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,326 |
| California Multiple Choice | 0 | - | 4.40 | 28,089 |
| San Francisco Trivia | 0 | - | 4.32 | 15,694 |
| San Francisco A-Z | 0 | - | 4.18 | 9,562 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,181 |
| Boston City Trivia | 0 | - | 4.38 | 24,162 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,644 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,025 |
| Official European Union Languages | 0 | - | 4.97 | 238,208 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,655 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,888 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,747 |
| Ancient Greek Words | 0 | - | 4.93 | 111,399 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,604 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,856 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,004 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,612 |
| Countries by Founding Story | 0 | - | 4.95 | 77,088 |
| Independence from Whom | 0 | - | 4.99 | 211,363 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,741 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,395 |
| History of India | 0 | - | 4.62 | 21,404 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,231 |
| History of South Africa | 0 | - | 4.60 | 17,664 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,915 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,771 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,025 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,182 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,329 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,442 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,534 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,594 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,330 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,835 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,565 |
| Canada Country Quiz | 0 | - | 4.54 | 132,353 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,091 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,636 |
| History of Austria | 0 | - | 4.70 | 17,839 |
| Geography of the French Empire | 0 | - | 4.45 | 27,032 |
| The French Revolution | 0 | - | 4.46 | 23,912 |
| History of France | 0 | - | 4.59 | 56,863 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,464 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,735 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,460 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,025 |
| The Vikings! | 0 | - | 4.46 | 28,322 |
| The Portuguese Empire | 0 | - | 4.58 | 12,053 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,312 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,336 |
| Geography of the British Empire | 0 | - | 4.48 | 39,637 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,017 |
