| U.S. Cabinet Departments | 0 | - | 4.86 | 72,720 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,653 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,250 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,221 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,541 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,724 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,629 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,126 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,878 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,558 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,951 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,257 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,988 |
| Pixelated United States Map | 0 | - | 4.89 | 93,890 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,102 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,342 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,442 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,996 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,003 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,475 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,691 |
| U.S. States By Population | 0 | - | 4.92 | 152,854 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,978 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,218 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,254 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,015 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,023 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,336 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,615 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,418 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,921 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,357 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,019 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,255 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,228 |
| U.S. States by Governor | 0 | - | 4.43 | 18,026 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,634 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,617 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,154 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,237 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,226 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,262 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,460 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,238 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,206 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,291 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,060 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,498 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,589 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,523 |
| States of Mexico | 0 | - | 4.95 | 174,985 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,263 |
| Central American Countries | 0 | - | 4.98 | 155,622 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,119 |
| Top U.S. Universities | 0 | - | 4.15 | 144,603 |
| Territories of the United States | 0 | - | 4.79 | 52,275 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,512 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,070 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,020 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,022 |
| New York City Geography | 0 | - | 4.42 | 33,033 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,414 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,530 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,143 |
| United States Country Quiz | 0 | - | 4.43 | 101,126 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,771 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,824 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,354 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,121 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,853 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,270 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,678,422 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,122 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,203 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,823 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,387 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,544 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,682 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,553 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,953 |
| 75 Americans Named John | 0 | - | 4.41 | 23,872 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,769 |
| New England States | 0 | - | 4.51 | 59,762 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,676 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,958 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,599 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,859 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,813 |
| U.S. States by Borders | 0 | - | 4.61 | 35,217 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 184,343 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,379 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,860 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,105 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,494 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,919 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,531 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,050 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,299 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,577 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,639 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,625 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,301 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,245 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,824 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,530 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,165 |
| NATO Countries | 0 | - | 4.98 | 278,452 |
| EU Countries Quiz | 0 | - | 4.99 | 272,014 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,390 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,120 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,052 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,294 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,169 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,835 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,095 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,256 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.73 | 63,730 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,443 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,713 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,733 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,609 |
| Flags of North and South America | 0 | - | 4.99 | 370,712 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,001 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,472 |
| Belize Country Quiz | 0 | - | 4.85 | 20,896 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,141 |
| Largest United States Airlines | 0 | - | 4.39 | 54,942 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,577 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,848 |
| Politicians with Other Careers | 0 | - | 3.98 | 15,007 |
| Main Parts of the U.S. Budget | 0 | - | 3.45 | 8,700 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,803 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,857 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,057 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,430 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,871 |
| The Only American Country ... | 0 | - | 4.92 | 121,234 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,784 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,763 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,464 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,087 |
| Which Island in the United States? | 0 | - | 4.29 | 29,355 |
| American Foods | 0 | - | 3.66 | 39,336 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,192 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,457 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,029 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,703 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,261 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,849 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,243 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,546 |
| Old West History | 0 | - | 4.33 | 15,246 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,510 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,897 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,693 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,733 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,499 |
| Flyover States | 0 | - | 4.52 | 29,457 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,027 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,006 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,185 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,645 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,486 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,287 |
| US States with the Most Executions | 0 | - | 4.51 | 26,377 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,000 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,837 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,082 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,652 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,667 |
| Monarchies of Europe | 0 | - | 4.90 | 97,764 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,737 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,446 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,195 |
| Monarchies of Asia | 0 | - | 4.97 | 70,873 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,678 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,583 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,885 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,987 |
| US States Quiz | 0 | - | 5.00 | 16,794,793 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,528 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,816 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,252 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,618 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,430 |
| Canada Country Quiz | 0 | - | 4.54 | 132,155 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,940 |
| Canada A-Z | 0 | - | 4.73 | 32,737 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,863 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,182 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,005 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,489 |
| History of Mexico | 0 | - | 4.58 | 15,270 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,620 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,437 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,715 |
| States of Brazil | 0 | - | 4.97 | 87,275 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,176 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,488 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,399 |
