| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,350 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,599 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,441 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,417 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,922 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,888 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,891 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,537 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,371 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,731 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,842 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,177 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,868 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,161 |
| Pixelated United States Map | 0 | - | 4.87 | 94,197 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,556 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,681 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,778 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,317 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,342 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,882 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,160 |
| U.S. States By Population | 0 | - | 4.92 | 153,486 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,351 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,397 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,458 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,238 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,177 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,565 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,889 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,654 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,143 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,471 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,173 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,460 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,235 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,133 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,873 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,047 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,692 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,430 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,487 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,922 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,861 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,027 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,449 |
| States of Mexico | 0 | - | 4.95 | 175,834 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,653 |
| Central American Countries | 0 | - | 4.98 | 156,369 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,248 |
| Territories of the United States | 0 | - | 4.79 | 52,368 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,645 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,391 |
| New York City Geography | 0 | - | 4.42 | 33,081 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,489 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,576 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,166 |
| United States Country Quiz | 0 | - | 4.43 | 101,445 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,860 |
| Canada A-Z | 0 | - | 4.73 | 32,805 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,950 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,128 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,906 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,343 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,244 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,705 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,129 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,106 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,868 |
| New England States | 0 | - | 4.51 | 59,801 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,785 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,002 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,774 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,976 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,906 |
| U.S. States by Borders | 0 | - | 4.61 | 35,293 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 185,533 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,465 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,013 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,203 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,628 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,018 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,642 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,162 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,364 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,655 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,839 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,796 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,392 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,495 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,949 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,878 |
| Countries that Beat Canada | 0 | - | 4.90 | 94,792 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,332 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,458 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,171 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,116 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,871 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,150 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,415 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.74 | 63,840 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,486 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,761 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,738 |
| Flags of North and South America | 0 | - | 4.99 | 372,697 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,665 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,905 |
| Belize Country Quiz | 0 | - | 4.85 | 20,960 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,205 |
| Top U.S. Universities | 0 | - | 4.15 | 145,035 |
| Largest United States Airlines | 0 | - | 4.39 | 55,016 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,701 |
| U.S. States by Governor | 0 | - | 4.43 | 18,058 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,686 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,667 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,831 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,945 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,105 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,571 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,335 |
| Country Logic Puzzle 4x4 – Sudoku style | 0 | - | 5.00 | 28,002 |
| The Only American Country ... | 0 | - | 4.92 | 121,534 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,053 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,827 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,485 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,114 |
| Which Island in the United States? | 0 | - | 4.29 | 29,485 |
| American Foods | 0 | - | 3.66 | 39,372 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,246 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,536 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,114 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,748 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,316 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,884 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,345 |
| Old West History | 0 | - | 4.34 | 15,271 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,518 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,921 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,721 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,829 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,516 |
| Flyover States | 0 | - | 4.52 | 29,502 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,101 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,126 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,334 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,678 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,551 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,380 |
| US States with the Most Executions | 0 | - | 4.51 | 26,392 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,055 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,976 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,140 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,222 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,888 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,449 |
| Countries Hidden in a Letter #1 | 0 | - | 5.00 | 48,131 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,772 |
| US States Quiz | 0 | - | 5.00 | 16,859,211 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,566 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,841 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,284 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,655 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,500 |
| Canada Country Quiz | 0 | - | 4.54 | 132,432 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,147 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,107 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,414 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,377 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,840 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,942 |
| History of Mexico | 0 | - | 4.58 | 15,304 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,863 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,838 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,008 |
| States of Brazil | 0 | - | 4.97 | 87,885 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,196 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,792 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,429 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,654 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,702 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,712 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,036 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,036 |
| California Multiple Choice | 0 | - | 4.40 | 28,098 |
| Geography of California | 0 | - | 4.26 | 10,557 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,682 |
| San Francisco Trivia | 0 | - | 4.32 | 15,695 |
| San Francisco A-Z | 0 | - | 4.18 | 9,567 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,182 |
| Chicago City Trivia | 0 | - | 4.31 | 31,439 |
| Boston City Trivia | 0 | - | 4.38 | 24,168 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,896 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,819 |
| History of Pennsylvania | 0 | - | 4.16 | 7,133 |
| History of Virginia | 0 | - | 4.31 | 11,596 |
| Washington State by Picture | 0 | - | 4.26 | 7,727 |
| Events in U.S. History | 0 | - | 4.41 | 28,654 |
| African-American Historical Figures | 0 | - | 4.18 | 17,207 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,039 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,319 |
