| United States Map Quiz | 0 | - | 4.98 | 4,164,843 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,806 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,837 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,654 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,891 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,672 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,506 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,077 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,752 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,342 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,986 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,451 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,699 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,480 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,776 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,860 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,203 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,201 |
| North America Map Quiz | 0 | - | 4.98 | 249,794 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,364 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,177 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,306 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,916 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,489 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,159 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,209 |
| New York True or False? | 0 | - | 4.53 | 33,873 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,426 |
| Central American Countries | 0 | - | 4.98 | 156,892 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,027 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,283 |
| Territories of the United States | 0 | - | 4.80 | 52,491 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,763 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,775 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,325 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,181 |
| New York City Geography | 0 | - | 4.42 | 33,139 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,627 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,507 |
| Florida True or False? | 0 | - | 4.48 | 28,727 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,757 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,845 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,540 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,383 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,741 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,685 |
| 75 Americans Named John | 0 | - | 4.41 | 23,937 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,090 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,770 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,117 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,765 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,320 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,441 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,770 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,121 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,063 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,491 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,797 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,111 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,988 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,568 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,838 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,306 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,924 |
| The Only European Country ... | 0 | - | 4.91 | 217,720 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,794 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,782 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,402 |
| California Multiple Choice | 0 | - | 4.40 | 28,132 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,190 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,192 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,214 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,616 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,755 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,469 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,214 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,438 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,801 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,145 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,095 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,266 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,628 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,738 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,670 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,576 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,350 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,724 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,051 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,555 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,675 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,462 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,697 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,838 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,696 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,494 |
| Slavic Countries | 0 | - | 4.96 | 111,993 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,249 |
| Counties of England | 0 | - | 4.97 | 799,797 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,783 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,873 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,158 |
| Which Island in the United States? | 0 | - | 4.29 | 29,639 |
| American Foods | 0 | - | 3.66 | 39,413 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,135 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,296 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,785 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,374 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,932 |
| U.S. Analogies | 0 | - | 4.27 | 19,702 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,429 |
| Old West History | 0 | - | 4.34 | 15,288 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,962 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,746 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,636 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,465 |
| US States with the Most Executions | 0 | - | 4.51 | 26,413 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,109 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,122 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,193 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,392 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,216 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,133 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,965 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,861 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,079 |
| Monarchies of Europe | 0 | - | 4.90 | 98,445 |
| European Countries with One Border | 0 | - | 4.97 | 183,252 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,025 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,475 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,859 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,902 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,227 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,428 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,230 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,272 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,191 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,969 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,323 |
| States of Germany | 0 | - | 4.95 | 153,545 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,360 |
| Regions of Italy | 0 | - | 4.92 | 76,415 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,513 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,645 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,488 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,237 |
| Champions League Winners | 0 | - | 4.92 | 1,010,866 |
| US States Quiz | 0 | - | 5.00 | 16,932,790 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,933 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,693 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,630 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,492 |
| Countries That Border Russia | 0 | - | 4.98 | 463,097 |
| Countries Bordering France | 0 | - | 4.83 | 403,826 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,913 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,619 |
| History of Mexico | 0 | - | 4.58 | 15,341 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,183 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,181 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,968 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,008 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,152 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,653 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,971 |
| San Francisco Trivia | 0 | - | 4.32 | 15,713 |
| San Francisco A-Z | 0 | - | 4.18 | 9,583 |
| Boston City Trivia | 0 | - | 4.38 | 24,181 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,468 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,378 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,423 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,347 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,516 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,684 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,956 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,769 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,240 |
| Russia Country Quiz | 0 | - | 4.83 | 114,783 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,530 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,444 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,815 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,289 |
| Departments of France | 0 | - | 4.93 | 54,606 |
| Germany Country Quiz | 0 | - | 4.83 | 158,316 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,734 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,801 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,700 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,637 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,177 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,346 |
| Name the English Monarchs | 0 | - | 4.91 | 504,492 |
| England or Wales? | 0 | - | 4.94 | 45,827 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,219 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,313 |
| Peru True or False? | 0 | - | 4.58 | 15,281 |
| Pixelated United States Map | 0 | - | 4.88 | 94,522 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,054 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,077 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,711,799 |
