| United States Map Quiz | 0 | - | 4.98 | 3,879,405 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 145,007 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,384 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,431 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,372 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,569 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 59,149 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.83 | 54,001 |
| Total United States Immigration by Country | 0 | - | 4.89 | 95,808 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 181,777 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,217 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 338,018 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.84 | 21,008 |
| Pixelated United States Map | 0 | - | 4.91 | 81,203 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 91,869 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,466 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,306 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 94,978 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 97,989 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,180 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,029 |
| U.S. States By Population | 0 | - | 4.90 | 129,140 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,179 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,420 |
| 10 Northernmost U.S. States | 0 | - | 4.86 | 59,607 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 76,969 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,815 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 54,584 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,238 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 166,856 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,470 |
| Countries of North America Quiz | 0 | - | 5.00 | 868,387 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 572,970 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,450 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,502 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,305 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,588 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 99,932 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 846,953 |
| North American Capitals - Map Quiz | 0 | - | 4.91 | 46,337 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 45,853 |
| Canada Provinces and Territories | 0 | - | 4.99 | 286,526 |
| States of Mexico | 0 | - | 4.94 | 138,173 |
| Mexico States Map Quiz | 0 | - | 4.85 | 89,361 |
| Central American Countries | 0 | - | 4.98 | 137,734 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 103,442 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 115,298 |
| Territories of the United States | 0 | - | 4.76 | 48,182 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 158,397 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,115 |
| African-American Historical Figures | 0 | - | 4.14 | 16,324 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 45,770 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,190 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,793 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,117 |
| United States Country Quiz | 0 | - | 4.45 | 87,831 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 71,941 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.77 | 56,307 |
| American Foods | 0 | - | 3.69 | 38,092 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,126 |
| U.S. Groups of Three Quiz | 0 | - | 4.03 | 19,403 |
| American Geography Quiz for Dummies | 0 | - | 4.33 | 52,566 |
| Countries Closest to Canada | 0 | - | 4.90 | 183,148 |
| U.S. Federal Holidays | 0 | - | 4.29 | 95,337 |
| American Legal Vocabulary | 0 | - | 4.43 | 31,960 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,689 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 197,994 |
| New England States | 0 | - | 4.53 | 52,342 |
| US States by Land Area | 0 | - | 4.59 | 48,175 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 35,979 |
| Add a Letter - Make a U.S. State | 0 | - | 4.76 | 75,912 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 50,614 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 36,966 |
| Save Americans by Guessing U.S. States | 0 | - | 4.56 | 146,949 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,656 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,088 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,240 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 93,067 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,072 |
| Top 10 Most African-American U.S. States | 0 | - | 4.47 | 61,206 |
| Top 10 Newest U.S. States | 0 | - | 4.80 | 67,630 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 61,241 |
| Top 10 Most Obese U.S. States | 0 | - | 4.50 | 64,650 |
| Top 10 Least Obese U.S. States | 0 | - | 4.80 | 67,412 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.51 | 64,026 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.44 | 47,664 |
| Top 10 Most White U.S. States | 0 | - | 4.52 | 55,007 |
| Top 10 Most German U.S. States | 0 | - | 4.49 | 42,043 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,185 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 41,827 |
| Countries that Beat Canada | 0 | - | 4.91 | 77,375 |
| Europe Geography Decoder | 0 | - | 4.89 | 62,735 |
| Famous Caribbean People | 0 | - | 4.35 | 12,073 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,315 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 53,759 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,666 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.75 | 42,112 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.52 | 58,088 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.51 | 33,730 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,632 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,696 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 71,363 |
| Famous People from Africa | 0 | - | 4.42 | 10,214 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 104,787 |
| South America Map Quiz | 0 | - | 5.00 | 1,409,359 |
| Belize Country Quiz | 0 | - | 4.88 | 18,545 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.87 | 16,894 |
| Top U.S. Universities | 0 | - | 4.11 | 111,796 |
| Largest United States Airlines | 0 | - | 4.38 | 51,801 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 106,005 |
| Name a Valid Answer - United States #1 | 0 | - | 4.70 | 84,613 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 16,881 |
| U.S. Political Parties in History | 0 | - | 4.42 | 26,033 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,490 |
| Florida Pro Sport Teams | 0 | - | 4.63 | 9,017 |
| Canada Immigration by Country | 0 | - | 4.52 | 56,710 |
| Africa Geography Quiz #1 | 0 | - | 4.91 | 45,878 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 306,082 |
| The Only American Country ... | 0 | - | 4.94 | 108,795 |
| Famous People from South America | 0 | - | 4.05 | 8,780 |
| North America Capitals Quiz | 0 | - | 4.99 | 183,936 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.12 | 25,970 |
| American Islands | 0 | - | 4.16 | 15,704 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.23 | 5,673 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,129 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.19 | 13,572 |
| The U.S. Government - How Does it Work? | 0 | - | 4.33 | 39,640 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 55,302 |
| New York City Geography | 0 | - | 4.40 | 23,335 |
| Old West History | 0 | - | 4.28 | 14,759 |
| Life of Benjamin Franklin | 0 | - | 4.18 | 6,206 |
| American Revolution - Multiple Choice | 0 | - | 4.31 | 18,700 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,328 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,404 |
| Flyover States | 0 | - | 4.51 | 27,842 |
| U.S. States With Double Letters | 0 | - | 4.64 | 3,995 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,315 |
| U.S. States by Borders | 0 | - | 4.59 | 26,070 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,438 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 27,517 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.65 | 29,569 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 40,469 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.34 | 62,510 |
| US States with the Most Executions | 0 | - | 4.51 | 25,613 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.60 | 26,823 |
| Top 10 Least White U.S. States | 0 | - | 4.18 | 36,268 |
| Top 10 Least Happy U.S. States | 0 | - | 4.55 | 22,083 |
| Canada Decoder | 0 | - | 4.09 | 17,771 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 64,428 |
| US States Quiz | 0 | - | 5.00 | 14,558,094 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,358 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,841 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.35 | 40,020 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.48 | 34,805 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 30,874 |
| Canada Country Quiz | 0 | - | 4.49 | 120,351 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 108,729 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.90 | 91,498 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 81,111 |
| Category Elimination - African Geography #1 | 0 | - | 4.89 | 78,662 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,290 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 72,550 |
| Hispanic Last Names in the U.S. | 0 | - | 4.29 | 52,435 |
| Mexican Foods | 0 | - | 4.08 | 13,436 |
| History of Mexico | 0 | - | 4.55 | 13,782 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 93,006 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 38,690 |
| Word Chain - South America | 0 | - | 4.48 | 21,795 |
| Brazil States Map Quiz | 0 | - | 4.84 | 38,894 |
| States of Brazil | 0 | - | 4.96 | 67,144 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.18 | 696,553 |
| U.S. States by Picture #1 | 0 | - | 4.15 | 14,272 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 71,029 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,822 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,246 |
| U.S. Electoral College Landslides | 0 | - | 4.33 | 20,922 |
| California Multiple Choice | 0 | - | 4.40 | 26,726 |
| Geography of California | 0 | - | 4.23 | 9,610 |
| California Pro Sport Teams | 0 | - | 4.23 | 22,023 |
| San Francisco Trivia | 0 | - | 4.33 | 15,158 |
| San Francisco A-Z | 0 | - | 4.19 | 9,013 |
| Florida Multiple Choice | 0 | - | 4.29 | 9,657 |
| Chicago City Trivia | 0 | - | 4.26 | 30,319 |
| Boston Trivia | 0 | - | 4.37 | 23,371 |
| Boston Talk to English Translation Quiz | 0 | - | 4.45 | 14,037 |
| New York Pro Sport Teams | 0 | - | 4.29 | 14,908 |
| Texas Pro Sport Teams | 0 | - | 4.11 | 16,148 |
| History of Pennsylvania | 0 | - | 4.09 | 6,390 |
| History of Virginia | 0 | - | 4.33 | 10,891 |
| Washington State by Picture | 0 | - | 4.16 | 7,088 |
| Events in U.S. History | 0 | - | 4.39 | 25,873 |
| Embarrassing Chapters in US History | 0 | - | 4.15 | 31,324 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 72,966 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,811 |
| Canadian Geography on the Map | 0 | - | 4.56 | 23,986 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 198,051 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 243,501 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 140,942 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 80,518 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.42 | 245,119 |
