| United States Map Quiz | 0 | - | 4.98 | 4,149,793 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,333 |
| North America Map Quiz | 0 | - | 4.98 | 246,948 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,583 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,306 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,286 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,931 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,082 |
| History of Mexico | 0 | - | 4.58 | 15,274 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,506 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,372 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,605 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,261 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,944 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,229 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,547 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,731 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,628 |
| Central American Countries | 0 | - | 4.98 | 155,641 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,139 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,262 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,624 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,420 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,929 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,358 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,023 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,261 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,517 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,993 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,463 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,214 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,442 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,592 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,010 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,569 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,659 |
| Territories of the United States | 0 | - | 4.79 | 52,280 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,514 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,077 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,994 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,758 |
| New York City Geography | 0 | - | 4.42 | 33,034 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,437 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,761 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,475 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,588 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,487 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,372 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,189 |
| States of Mexico | 0 | - | 4.95 | 175,009 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,456 |
| States of Brazil | 0 | - | 4.97 | 87,285 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,651 |
| Famous Caribbean People | 0 | - | 4.37 | 12,596 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,996 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,162 |
| Word Chain - South America | 0 | - | 4.51 | 23,849 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,388 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,220 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,683 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,582 |
| 75 Americans Named John | 0 | - | 4.41 | 23,872 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,921 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,498 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,921 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,532 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,056 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,303 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,583 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,645 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,635 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,306 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,255 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,826 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,562 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,171 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,265 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,069 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,059 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,053 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,095 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,160 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,542 |
| Famous People from South America | 0 | - | 4.15 | 21,893 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,087 |
| Which Island in the United States? | 0 | - | 4.29 | 29,356 |
| American Foods | 0 | - | 3.66 | 39,336 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,123 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,193 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,703 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,262 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,850 |
| U.S. Analogies | 0 | - | 4.27 | 19,646 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,275 |
| Old West History | 0 | - | 4.33 | 15,247 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,511 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,897 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,695 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,647 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,488 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,289 |
| US States with the Most Executions | 0 | - | 4.51 | 26,377 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,000 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,842 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,086 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,657 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,741 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,161 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,391 |
| Canada Decoder | 0 | - | 4.12 | 18,690 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,355 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,346 |
| Australian Capitals | 0 | - | 4.92 | 62,672 |
| North America Cities by Map | 0 | - | 4.41 | 47,726 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,530 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,291 |
| California Multiple Choice | 0 | - | 4.40 | 28,072 |
| San Francisco Trivia | 0 | - | 4.32 | 15,686 |
| San Francisco A-Z | 0 | - | 4.18 | 9,549 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,175 |
| Boston City Trivia | 0 | - | 4.38 | 24,156 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,618 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,894 |
| Official European Union Languages | 0 | - | 4.97 | 237,809 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,414 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,891 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,882 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,156 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,736 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,035 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,210 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,545 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,304 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,415 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,399 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,579 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,309 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,818 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,556 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,531 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,823 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,719 |
| Asia Map Quiz | 0 | - | 4.99 | 911,904 |
| Countries of Africa | 0 | - | 5.00 | 2,524,099 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,373 |
| African East Coast | 0 | - | 4.96 | 95,620 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,447 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,275 |
| Australia Map Quiz | 0 | - | 4.94 | 343,450 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,232 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,013 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,683 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,276 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,536 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,296 |
| American Inventions #1 | 0 | - | 3.63 | 31,486 |
| American Inventions #2 | 0 | - | 3.93 | 15,849 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,674 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,517 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,295 |
| University of California Campuses | 0 | - | 3.84 | 8,895 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,385 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,311 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,506 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,798 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,142 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,460 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,789 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,475 |
| The Only European Country ... | 0 | - | 4.91 | 215,428 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,476 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,693 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,325 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,726 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,738 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,583 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,362 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,989 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,786 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,903 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,866 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,348 |
| African Island Countries | 0 | - | 4.96 | 101,247 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,758 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,032 |
| Australian States and Territories | 0 | - | 4.96 | 141,468 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,173 |
| Australia True or False | 0 | - | 4.87 | 56,705 |
| Flags of North and South America | 0 | - | 4.99 | 370,785 |
| South American Physical Geography | 0 | - | 4.58 | 18,317 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,664 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,719 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,911 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,332 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,146 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,436 |
| Celtic Nations | 0 | - | 4.69 | 46,881 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,283 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,243 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,781 |
