| United States Map Quiz | 0 | - | 4.98 | 3,906,141 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 147,153 |
| U.S. State Border Crossings | 0 | - | 4.96 | 82,181 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 222,265 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.83 | 33,384 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 65,398 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 60,502 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 54,870 |
| Total United States Immigration by Country | 0 | - | 4.89 | 96,847 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 185,266 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,673 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 340,384 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.83 | 21,694 |
| Pixelated United States Map | 0 | - | 4.90 | 82,323 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 93,491 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 78,814 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 100,660 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 96,272 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 99,328 |
| U.S. States with Short Names | 0 | - | 4.87 | 129,858 |
| U.S. States that Start with M | 0 | - | 4.91 | 150,591 |
| U.S. States By Population | 0 | - | 4.90 | 130,050 |
| U.S. States that Start with N | 0 | - | 4.95 | 155,657 |
| U.S. States with Longest Names | 0 | - | 4.84 | 36,100 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 73,734 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 77,928 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 58,410 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 56,166 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 145,479 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 167,948 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 99,096 |
| Top 10 Newest U.S. States | 0 | - | 4.81 | 68,145 |
| Top 10 Least Obese U.S. States | 0 | - | 4.81 | 68,211 |
| Countries of North America Quiz | 0 | - | 5.00 | 881,329 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 585,446 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,354 |
| Countries that Beat the United States | 0 | - | 4.92 | 145,864 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 89,599 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 73,266 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 100,962 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 852,471 |
| North American Capitals - Map Quiz | 0 | - | 4.91 | 47,219 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 47,577 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,333 |
| U.S. Groups of Three Quiz | 0 | - | 4.05 | 19,520 |
| Canada Provinces and Territories | 0 | - | 4.99 | 289,981 |
| States of Mexico | 0 | - | 4.95 | 141,580 |
| Mexico States Map Quiz | 0 | - | 4.84 | 90,697 |
| Central American Countries | 0 | - | 4.98 | 139,637 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 104,508 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 116,783 |
| Territories of the United States | 0 | - | 4.76 | 48,585 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 159,958 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,482 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 46,202 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,796 |
| Countries with American Expatriates | 0 | - | 4.58 | 40,943 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,346 |
| United States Country Quiz | 0 | - | 4.45 | 89,258 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 72,508 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.76 | 57,114 |
| American Foods | 0 | - | 3.71 | 38,187 |
| Countries Closest to Canada | 0 | - | 4.90 | 184,609 |
| U.S. Federal Holidays | 0 | - | 4.29 | 95,695 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,776 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 198,688 |
| New England States | 0 | - | 4.54 | 52,443 |
| US States by Land Area | 0 | - | 4.58 | 48,520 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 36,197 |
| Add a Letter - Make a U.S. State | 0 | - | 4.74 | 76,577 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 51,118 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 37,337 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 53,013 |
| The Only U.S. State ... #1 | 0 | - | 4.51 | 82,650 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,528 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 93,693 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,356 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 61,457 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 61,703 |
| Top 10 Most Obese U.S. States | 0 | - | 4.50 | 64,879 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.51 | 64,571 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.45 | 48,306 |
| Top 10 Most White U.S. States | 0 | - | 4.52 | 55,682 |
| Top 10 Most German U.S. States | 0 | - | 4.50 | 42,329 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,474 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 42,158 |
| Countries that Beat Canada | 0 | - | 4.91 | 78,261 |
| Europe Geography Decoder | 0 | - | 4.89 | 63,357 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 384,803 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,419 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 54,046 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,936 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.76 | 42,421 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 58,312 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 33,964 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,781 |
| African-American Historical Figures | 0 | - | 4.14 | 16,401 |
| Add A Letter - Make a European City | 0 | - | 4.86 | 20,873 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 71,973 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 107,045 |
| South America Map Quiz | 0 | - | 5.00 | 1,422,300 |
| Belize Country Quiz | 0 | - | 4.88 | 18,784 |
| Top U.S. Universities | 0 | - | 4.12 | 113,131 |
| Largest United States Airlines | 0 | - | 4.38 | 52,056 |
| Third Most Common Language by U.S. State | 0 | - | 4.91 | 107,137 |
| Name a Valid Answer - United States #1 | 0 | - | 4.66 | 85,544 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 16,959 |
| U.S. Political Parties in History | 0 | - | 4.42 | 26,184 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,690 |
| Florida Pro Sport Teams | 0 | - | 4.66 | 10,343 |
| Canada Immigration by Country | 0 | - | 4.52 | 57,281 |
| German Groups of Things | 0 | - | 4.43 | 36,002 |
| Top Five Countries By Category #2 | 0 | - | 4.92 | 157,328 |
| Top Five Countries By Category #3 | 0 | - | 4.87 | 142,676 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 46,159 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 310,343 |
| The Only American Country ... | 0 | - | 4.94 | 109,833 |
| North America Capitals Quiz | 0 | - | 4.99 | 186,262 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.11 | 26,049 |
| American Islands | 0 | - | 4.16 | 15,759 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.23 | 5,698 |
| American Legal Vocabulary | 0 | - | 4.40 | 32,171 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 31,755 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,390 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.19 | 13,657 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 39,878 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 55,722 |
| New York City Geography | 0 | - | 4.40 | 23,411 |
| Old West History | 0 | - | 4.28 | 14,790 |
| Life of Benjamin Franklin | 0 | - | 4.18 | 6,222 |
| American Revolution - Multiple Choice | 0 | - | 4.32 | 18,816 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,821 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,503 |
| Flyover States | 0 | - | 4.51 | 28,003 |
| U.S. States With Double Letters | 0 | - | 4.66 | 4,296 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.30 | 57,817 |
| U.S. States by Borders | 0 | - | 4.56 | 26,353 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,993 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 27,737 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.71 | 29,917 |
| U.S. States with Oldest Median Age | 0 | - | 4.35 | 31,750 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 40,932 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.34 | 63,001 |
| US States with the Most Executions | 0 | - | 4.51 | 25,673 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.60 | 27,025 |
| Top 10 Least White U.S. States | 0 | - | 4.18 | 36,541 |
| Top 10 Least Happy U.S. States | 0 | - | 4.55 | 22,309 |
| Canada Decoder | 0 | - | 4.10 | 17,845 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 65,929 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 162,690 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.92 | 68,134 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.83 | 47,028 |
| Top Five Countries By Fruit Production | 0 | - | 4.93 | 42,969 |
| US States Quiz | 0 | - | 5.00 | 14,764,572 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,509 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,986 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.35 | 40,212 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 35,074 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 31,104 |
| Canada Country Quiz | 0 | - | 4.54 | 121,500 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 109,475 |
| British Groups of Things | 0 | - | 4.26 | 80,165 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.90 | 93,011 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 82,387 |
| Category Elimination - African Geography #1 | 0 | - | 4.89 | 79,775 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 81,508 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 73,259 |
| Hispanic Last Names in the U.S. | 0 | - | 4.29 | 52,676 |
| Mexican Foods | 0 | - | 4.08 | 13,572 |
| History of Mexico | 0 | - | 4.55 | 13,920 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 94,350 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.90 | 40,104 |
| Word Chain - South America | 0 | - | 4.49 | 22,019 |
| Brazil States Map Quiz | 0 | - | 4.83 | 39,631 |
| States of Brazil | 0 | - | 4.97 | 68,781 |
| Famous Caribbean People | 0 | - | 4.36 | 12,131 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.18 | 701,515 |
| U.S. States by Picture #1 | 0 | - | 4.15 | 14,360 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 72,845 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 62,942 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,305 |
| U.S. Electoral College Landslides | 0 | - | 4.33 | 21,012 |
| California Multiple Choice | 0 | - | 4.40 | 26,871 |
| Geography of California | 0 | - | 4.23 | 9,678 |
| California Pro Sport Teams | 0 | - | 4.23 | 22,129 |
| San Francisco Trivia | 0 | - | 4.34 | 15,207 |
| San Francisco A-Z | 0 | - | 4.19 | 9,047 |
| Florida Multiple Choice | 0 | - | 4.30 | 9,722 |
| Chicago City Trivia | 0 | - | 4.26 | 30,412 |
| Boston Trivia | 0 | - | 4.37 | 23,444 |
| Boston Talk to English Translation Quiz | 0 | - | 4.46 | 14,164 |
| New York Pro Sport Teams | 0 | - | 4.35 | 23,516 |
| Texas Pro Sport Teams | 0 | - | 4.11 | 16,236 |
| History of Pennsylvania | 0 | - | 4.09 | 6,437 |
| History of Virginia | 0 | - | 4.33 | 10,943 |
| Washington State by Picture | 0 | - | 4.16 | 7,146 |
| Events in U.S. History | 0 | - | 4.39 | 26,145 |
| Embarrassing Chapters in US History | 0 | - | 4.15 | 31,480 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,703 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,918 |
