| United States Map Quiz | 0 | - | 4.98 | 4,160,445 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,607 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,523 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,550 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,519 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,576 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,197 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,974 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,997 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,726 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,292 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,900 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,279 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,221 |
| Pixelated United States Map | 0 | - | 4.87 | 94,334 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,767 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,840 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,980 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,522 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,525 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,110 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,403 |
| U.S. States By Population | 0 | - | 4.92 | 153,619 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,533 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,486 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,604 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,386 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,247 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,682 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,127 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,845 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,312 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,599 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,332 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,622 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,105 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,550 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,826 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,527 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,921 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,809 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,989 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,605 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,551 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,175 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,043 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,250 |
| American Foods | 0 | - | 3.66 | 39,388 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,183 |
| Territories of the United States | 0 | - | 4.80 | 52,424 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,700 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,535 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,215 |
| New York City Geography | 0 | - | 4.42 | 33,112 |
| States of Mexico | 0 | - | 4.96 | 176,309 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,821 |
| Central American Countries | 0 | - | 4.98 | 156,551 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,645 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,590 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,191 |
| United States Country Quiz | 0 | - | 4.43 | 101,589 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,906 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,413 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,433 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,002 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,591 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,912 |
| New England States | 0 | - | 4.51 | 59,818 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,840 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,019 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,847 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,035 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,951 |
| U.S. States by Borders | 0 | - | 4.61 | 35,339 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 186,002 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,500 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,069 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,241 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,693 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,065 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,714 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,236 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,401 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,709 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,962 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,910 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,437 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,622 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,009 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,935 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,474 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,726 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,510 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,204 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,153 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,882 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,173 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,474 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.74 | 63,889 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,509 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,780 |
| Flags of North and South America | 0 | - | 4.99 | 373,518 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,901 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,413 |
| Belize Country Quiz | 0 | - | 4.85 | 20,991 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,226 |
| Top U.S. Universities | 0 | - | 4.15 | 145,209 |
| Largest United States Airlines | 0 | - | 4.39 | 55,045 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,758 |
| U.S. States by Governor | 0 | - | 4.43 | 18,067 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,704 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,690 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,851 |
| Events in U.S. History | 0 | - | 4.41 | 28,686 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,119 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,542 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,346 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,809 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,841 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,926 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,581 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,151 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,373 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,984 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,738 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,865 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,533 |
| Flyover States | 0 | - | 4.52 | 29,522 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,135 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,194 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,412 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,711 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,593 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,420 |
| US States with the Most Executions | 0 | - | 4.51 | 26,400 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,078 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,534 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,038 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,160 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,633 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,306 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,354 |
| The Only American Country ... | 0 | - | 4.92 | 121,680 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,856 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,052 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,133 |
| Which Island in the United States? | 0 | - | 4.29 | 29,539 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,130 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,264 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,771 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,341 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,909 |
| Old West History | 0 | - | 4.34 | 15,279 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,523 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,942 |
| US States Quiz | 0 | - | 5.00 | 16,889,153 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,581 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,860 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,303 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,676 |
| Canada Country Quiz | 0 | - | 4.54 | 132,545 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,253 |
| Canada A-Z | 0 | - | 4.73 | 32,845 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,378 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,794 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,515 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,436 |
| Name a Valid African Country | 0 | - | 4.98 | 154,171 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,256 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,508 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,766 |
| History of Mexico | 0 | - | 4.58 | 15,317 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,978 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,007 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,127 |
| States of Brazil | 0 | - | 4.97 | 88,264 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,201 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,449 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,448 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,977 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,865 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,285 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,047 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,043 |
| California Multiple Choice | 0 | - | 4.40 | 28,108 |
| Geography of California | 0 | - | 4.26 | 10,574 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,692 |
| San Francisco Trivia | 0 | - | 4.32 | 15,708 |
| San Francisco A-Z | 0 | - | 4.18 | 9,576 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,183 |
| Chicago City Trivia | 0 | - | 4.31 | 31,461 |
| Boston City Trivia | 0 | - | 4.38 | 24,174 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,908 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,826 |
| History of Pennsylvania | 0 | - | 4.16 | 7,139 |
| History of Virginia | 0 | - | 4.31 | 11,602 |
| Washington State by Picture | 0 | - | 4.26 | 7,731 |
| African-American Historical Figures | 0 | - | 4.18 | 17,229 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,155 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,335 |
