| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,200 |
| Central American Countries | 0 | - | 4.98 | 157,124 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,859 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,954 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,166 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,189 |
| North America Map Quiz | 0 | - | 4.98 | 250,708 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,922 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,463 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,620 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,026 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,697 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,770 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,607 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,806 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,786 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,174 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,317 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,151 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,845 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,952 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,514 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,079 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,567 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,761 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,563 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,894 |
| History of Mexico | 0 | - | 4.52 | 15,355 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,932 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,814 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,816 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,259 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,653 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,861 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,643 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,400 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,117 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,710 |
| Territories of the United States | 0 | - | 4.80 | 52,556 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,823 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,949 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,412 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,288 |
| New York City Geography | 0 | - | 4.43 | 33,166 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,813 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,564 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,680 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,690 |
| States of Mexico | 0 | - | 4.96 | 177,653 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,546 |
| Word Chain - South America | 0 | - | 4.51 | 23,969 |
| States of Brazil | 0 | - | 4.97 | 89,214 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,750 |
| Famous Caribbean People | 0 | - | 4.37 | 12,649 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,120 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,581 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,414 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,756 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,702 |
| 75 Americans Named John | 0 | - | 4.41 | 23,956 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,137 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,856 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,181 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,797 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,391 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,471 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,816 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,246 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,174 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,537 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,933 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,196 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,042 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,657 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,404 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,342 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,172 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,234 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,241 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,271 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,713 |
| Famous People from South America | 0 | - | 4.15 | 22,051 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,175 |
| Which Island in the United States? | 0 | - | 4.29 | 29,709 |
| American Foods | 0 | - | 3.66 | 39,425 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,142 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,320 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,806 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,408 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,962 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,467 |
| Old West History | 0 | - | 4.34 | 15,292 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,972 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,769 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,676 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,496 |
| US States with the Most Executions | 0 | - | 4.51 | 26,420 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,137 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,201 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,218 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,783 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,867 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,235 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,823 |
| Canada Decoder | 0 | - | 4.07 | 18,756 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,905 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,305 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,038 |
| North America Cities by Map | 0 | - | 4.41 | 47,901 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,665 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,425 |
| California Multiple Choice | 0 | - | 4.40 | 28,156 |
| San Francisco Trivia | 0 | - | 4.32 | 15,720 |
| San Francisco A-Z | 0 | - | 4.18 | 9,583 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,196 |
| Boston City Trivia | 0 | - | 4.38 | 24,193 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,718 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,763 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,585 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,902 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,821 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,112 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,278 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,650 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,405 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,518 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,145 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,623 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,378 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,874 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,586 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,579 |
| Official European Union Languages | 0 | - | 4.97 | 239,444 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,445 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,182 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,098 |
| Asia Map Quiz | 0 | - | 4.99 | 923,063 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,996 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,150 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,257 |
| Australia Map Quiz | 0 | - | 4.95 | 345,774 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,303 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,357 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,833 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,424 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,820 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,355 |
| American Inventions #1 | 0 | - | 3.62 | 31,525 |
| American Inventions #2 | 0 | - | 3.93 | 15,884 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,901 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,608 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,404 |
| University of California Campuses | 0 | - | 3.84 | 8,941 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,422 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,448 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,840 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,282 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,724 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,220 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,743 |
| The Only European Country ... | 0 | - | 4.91 | 218,358 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,160 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,998 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,689 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,240 |
| Countries of Africa | 0 | - | 5.00 | 2,553,017 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,625 |
| African East Coast | 0 | - | 4.96 | 96,557 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,418 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,839 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,471 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,443 |
| Australian States and Territories | 0 | - | 4.96 | 142,624 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,447 |
| Australia True or False | 0 | - | 4.87 | 57,074 |
| Flags of North and South America | 0 | - | 4.99 | 375,873 |
| South American Physical Geography | 0 | - | 4.58 | 18,386 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,760 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,080 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,849 |
| Celtic Nations | 0 | - | 4.61 | 47,062 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,797 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,286 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,840 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,228 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,610 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,887 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,206 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,961 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,074 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,947 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,641 |
| Slavic Countries | 0 | - | 4.96 | 112,188 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,619 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,341 |
| Counties of England | 0 | - | 4.97 | 801,284 |
