| U.S. Citizenship Test Questions | 0 | - | 4.83 | 231,697 |
| United States Map Quiz | 0 | - | 4.98 | 4,052,393 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,164 |
| U.S. State Border Crossings | 0 | - | 4.96 | 86,612 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 70,853 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 68,448 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 25,276 |
| Major non-NATO U.S. Allies | 0 | - | 4.50 | 49,194 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 79,029 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 153,712 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 173,594 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 120,236 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.83 | 66,936 |
| Top 10 Newest U.S. States | 0 | - | 4.84 | 83,079 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.83 | 63,334 |
| Countries of North America Quiz | 0 | - | 5.00 | 953,334 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 610,186 |
| North America Map Quiz | 0 | - | 4.98 | 224,173 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 51,545 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 94,752 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 882,694 |
| North American Capitals - Map Quiz | 0 | - | 4.89 | 52,439 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 90,499 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 55,346 |
| U.S. Federal Holidays | 0 | - | 4.30 | 97,844 |
| Most-Spoken Languages of the United States | 0 | - | 4.44 | 201,962 |
| Branches of the U.S. Military | 0 | - | 4.41 | 22,953 |
| Canada Provinces and Territories | 0 | - | 4.99 | 311,599 |
| Central American Countries | 0 | - | 4.98 | 148,094 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 109,074 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 123,708 |
| Territories of the United States | 0 | - | 4.78 | 50,732 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.77 | 37,448 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 168,805 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 90,621 |
| Most Common High School Mascots | 0 | - | 4.44 | 30,406 |
| Native American Tribes in the US | 0 | - | 4.70 | 24,249 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 5,928 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 60,888 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.19 | 51,779 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 39,496 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 97,271 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 73,292 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 73,234 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 80,243 |
| Top 10 Least Obese U.S. States | 0 | - | 4.77 | 71,920 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.47 | 81,241 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.44 | 50,779 |
| Top 10 Most White U.S. States | 0 | - | 4.50 | 78,140 |
| Top 10 Most German U.S. States | 0 | - | 4.49 | 57,321 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 39,107 |
| Ten Most Rectangular U.S. States | 0 | - | 4.52 | 59,465 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.64 | 43,976 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 35,186 |
| Canada Geography Trivia | 0 | - | 4.79 | 46,371 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,243 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 138,442 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 119,426 |
| South America Map Quiz | 0 | - | 5.00 | 1,491,507 |
| Embarrassing Chapters in US History | 0 | - | 4.19 | 32,404 |
| Canada Immigration by Country | 0 | - | 4.51 | 60,080 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.84 | 83,992 |
| North America Capitals Quiz | 0 | - | 4.99 | 202,720 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.09 | 26,574 |
| Which Island in the United States? | 0 | - | 4.19 | 19,106 |
| American Foods | 0 | - | 3.69 | 38,748 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.25 | 14,217 |
| U.S. Groups of Four Quiz | 0 | - | 4.38 | 24,450 |
| U.S. Groups of Three Quiz | 0 | - | 4.06 | 20,316 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.37 | 14,228 |
| 75 Americans Named John | 0 | - | 4.39 | 23,387 |
| U.S. Analogies | 0 | - | 4.23 | 19,284 |
| New York City Geography | 0 | - | 4.38 | 23,883 |
| Old West History | 0 | - | 4.30 | 15,030 |
| Life of Benjamin Franklin | 0 | - | 4.22 | 6,386 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,473 |
| U.S. History Multiple Choice #3 | 0 | - | 4.42 | 24,130 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 28,824 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.65 | 31,586 |
| U.S. States with Oldest Median Age | 0 | - | 4.32 | 41,004 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 43,006 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.40 | 71,332 |
| US States with the Most Executions | 0 | - | 4.51 | 26,079 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,122 |
| Top 10 Least White U.S. States | 0 | - | 4.19 | 45,237 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 23,243 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 27,849 |
| U.S. Geography - Multiple Choice | 0 | - | 4.45 | 23,885 |
| Name a Valid Answer - United States #2 | 0 | - | 4.18 | 25,973 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 65,648 |
| Category Elimination - European Geography #3 | 0 | - | 4.83 | 73,881 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 63,993 |
| US States Quiz | 0 | - | 5.00 | 15,850,431 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 355,739 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,038 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 89,407 |
| U.S. Geography by Letter - B | 0 | - | 4.51 | 63,297 |
| U.S. Geography by Letter - S | 0 | - | 4.53 | 48,500 |
| History of Mexico | 0 | - | 4.58 | 14,747 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 100,192 |
| U.S. National Parks Quiz | 0 | - | 4.81 | 50,883 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 724,824 |
| Total United States Immigration by Country | 0 | - | 4.89 | 104,407 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.95 | 166,351 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 201,879 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 28,449 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 70,569 |
| California Multiple Choice | 0 | - | 4.40 | 27,584 |
| San Francisco Trivia | 0 | - | 4.40 | 15,460 |
| San Francisco A-Z | 0 | - | 4.22 | 9,314 |
| Florida Multiple Choice | 0 | - | 4.33 | 9,983 |
| Boston Trivia | 0 | - | 4.38 | 23,812 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.83 | 61,860 |
| Canadian Geography on the Map | 0 | - | 4.58 | 25,289 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 47,969 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 39,531 |
| Pixelated United States Map | 0 | - | 4.89 | 88,664 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 101,826 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 85,568 |
| Three Real and One Fake - U.S. History | 0 | - | 4.32 | 25,206 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,444,375 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 183,362 |
| U.S. History Multiple Choice #2 | 0 | - | 4.31 | 24,593 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 21,779 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 24,947 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 110,147 |
| U.S. States with the Letter Y | 0 | - | 4.84 | 104,712 |
| 10 Southernmost U.S. States | 0 | - | 4.87 | 106,890 |
| U.S. States with Short Names | 0 | - | 4.89 | 140,501 |
| U.S. States that Start with M | 0 | - | 4.92 | 178,192 |
| U.S. States By Population | 0 | - | 4.90 | 137,047 |
| U.S. States that Start with N | 0 | - | 4.94 | 164,259 |
| U.S. States with Longest Names | 0 | - | 4.87 | 40,579 |
| US States with an Empty Map | 0 | - | 5.00 | 592,441 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 83,550 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 61,443 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 60,992 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 18,560 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.34 | 24,927 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.23 | 22,081 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,376 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.24 | 11,958 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,515 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.15 | 9,285 |
| Bahamas Country Quiz | 0 | - | 4.62 | 18,435 |
| U.S. History Multiple Choice #5 | 0 | - | 4.32 | 11,109 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,228 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 509,411 |
| Africa A-Z | 0 | - | 4.57 | 45,229 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 257,917 |
| U.S. Geography by Letter - C | 0 | - | 4.21 | 62,677 |
| U.S. Geography by Letter - A | 0 | - | 4.33 | 57,586 |
| U.S. Geography by Letter - D | 0 | - | 4.03 | 46,474 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 45,589 |
| U.S. Geography by Letter - P | 0 | - | 4.32 | 43,599 |
| U.S. Geography by Letter - M | 0 | - | 4.19 | 42,802 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,023 |
| American Inventions #1 | 0 | - | 3.65 | 31,249 |
| American Inventions #2 | 0 | - | 3.91 | 15,633 |
| 10 Longest Rivers in the United States | 0 | - | 4.84 | 37,164 |
| Rivers of the United States | 0 | - | 4.92 | 61,704 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.88 | 19,050 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,078 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 306,709 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 140,131 |
| Countries that Beat the United States | 0 | - | 4.93 | 157,753 |
| Countries Closest to Alaska | 0 | - | 4.91 | 105,006 |
| University of California Campuses | 0 | - | 3.90 | 8,552 |
| Countries Closest to Maine | 0 | - | 4.84 | 63,014 |
| People on Money - United States | 0 | - | 4.32 | 62,616 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 481,233 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 42,157 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 197,548 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 44,023 |
| Draw All US State Borders | 0 | - | 4.99 | 116,045 |
| Top 10 Coldest U.S. States | 0 | - | 4.92 | 107,871 |
| Top 10 Hottest U.S. States | 0 | - | 4.85 | 118,300 |
| Top 10 Most Native American U.S. States | 0 | - | 4.85 | 86,073 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 96,319 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 78,417 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.84 | 59,596 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,091 |
| 20 Most-Visited Places in Canada | 0 | - | 4.22 | 12,731 |
| Canada Decoder | 0 | - | 4.10 | 18,286 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 87,713 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 124,553 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 192,732 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,267 |
| Largest Caribbean Islands | 0 | - | 4.06 | 16,084 |
| Famous Caribbean People | 0 | - | 4.37 | 12,348 |
| Saintly Islands of the Caribbean | 0 | - | 4.30 | 23,205 |
| North America Cities by Map | 0 | - | 4.41 | 46,727 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.41 | 35,680 |
| Countries Closest to United States A-Z | 0 | - | 4.83 | 113,024 |
| U.S. Highway Signs By State | 0 | - | 4.45 | 14,864 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 411,320 |
| Hawaiian Islands | 0 | - | 4.83 | 40,601 |
| U.S. State Flags | 0 | - | 4.88 | 153,158 |
| U.S. States that Border Canada | 0 | - | 4.91 | 172,706 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 55,136 |
