| Canada Provinces and Territories | 0 | - | 5.00 | 338,316 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,355 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,318 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,866 |
| North America Map Quiz | 0 | - | 4.98 | 244,812 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,400 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,686 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,910 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,001 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,652 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,069 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,952 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,088 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,010 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,440 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,933 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,122 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,541 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,382 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,260 |
| Central American Countries | 0 | - | 4.98 | 155,162 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,102 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 24,992 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,165 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,494 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,948 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,965 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,127 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,547 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,101 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,706 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,886 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,488 |
| New York True or False? | 0 | - | 4.53 | 33,703 |
| History of Mexico | 0 | - | 4.58 | 15,237 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,598 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,001 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,859 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,200 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,490 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,976 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,850 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,188 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,233 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,348 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,822 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,692 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,999 |
| Territories of the United States | 0 | - | 4.79 | 52,171 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,412 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,651 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,788 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,493 |
| Florida True or False? | 0 | - | 4.48 | 28,550 |
| New York City Geography | 0 | - | 4.42 | 32,954 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,597 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,672 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,363 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,184 |
| Old West History | 0 | - | 4.33 | 15,229 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,496 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,858 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,279 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,132 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,052 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,507 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,537 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,196 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,103 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,571 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,001 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,968 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,232 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,123 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,112 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,633 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,534 |
| 75 Americans Named John | 0 | - | 4.41 | 23,830 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,816 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,234 |
| California Multiple Choice | 0 | - | 4.40 | 28,043 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,166 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,350 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,808 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,436 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,913 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,227 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,442 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,307 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,411 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,173 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,926 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,621 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 70,951 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,186 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,444 |
| Name the English Monarchs | 0 | - | 4.92 | 498,406 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,040 |
| Peru True or False? | 0 | - | 4.58 | 15,195 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,658,811 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,382 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,978 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,027 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,440 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,914 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,101 |
| French History Multiple Choice | 0 | - | 4.55 | 32,892 |
| The Trojan War | 0 | - | 4.83 | 39,466 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,517 |
| Name that Greek Letter | 0 | - | 4.94 | 321,828 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,693 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,463 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,110 |
| Roman Emperors | 0 | - | 4.95 | 118,609 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,439 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,178 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,588 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,018 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,336 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,006 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,042 |
| Which Island in the United States? | 0 | - | 4.29 | 29,191 |
| American Inventions #1 | 0 | - | 3.63 | 31,467 |
| American Inventions #2 | 0 | - | 3.93 | 15,830 |
| American Foods | 0 | - | 3.66 | 39,285 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,111 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 31,911 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,670 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,207 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,810 |
| U.S. Analogies | 0 | - | 4.27 | 19,613 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,173 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,591 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,389 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,183 |
| US States with the Most Executions | 0 | - | 4.51 | 26,352 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,937 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,658 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,081 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,041 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 27,773 |
| Canada Decoder | 0 | - | 4.12 | 18,656 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,146 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,623 |
| History of Russia Quiz | 0 | - | 4.49 | 31,801 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 57,591 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,803 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,461 |
| History of Italy | 0 | - | 4.55 | 31,840 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,496 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,996 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,564 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,677 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,601 |
| Famous Caribbean People | 0 | - | 4.37 | 12,569 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,941 |
| North America Cities by Map | 0 | - | 4.41 | 47,636 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,473 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,023 |
| San Francisco Trivia | 0 | - | 4.32 | 15,663 |
| San Francisco A-Z | 0 | - | 4.18 | 9,524 |
| Boston City Trivia | 0 | - | 4.38 | 24,133 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,586 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,112 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,814 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,628 |
| Ancient Greek Words | 0 | - | 4.92 | 110,788 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,632 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,661 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,257 |
| History of India | 0 | - | 4.61 | 21,297 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,570 |
| Which African Country? | 0 | - | 4.58 | 36,253 |
| History of South Africa | 0 | - | 4.60 | 17,611 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,937 |
| Australian Capitals | 0 | - | 4.92 | 62,598 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,755 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,747 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,049 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,738 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,246 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,386 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,337 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,560 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,286 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,797 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,537 |
| Canada Country Quiz | 0 | - | 4.55 | 131,800 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,684 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,639 |
| Official European Union Languages | 0 | - | 4.97 | 237,059 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,777 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,508 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,111 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,798 |
| History of Austria | 0 | - | 4.70 | 17,765 |
| Geography of the French Empire | 0 | - | 4.48 | 26,947 |
| The French Revolution | 0 | - | 4.46 | 23,800 |
| History of France | 0 | - | 4.59 | 56,184 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,391 |
