| United States Map Quiz | 0 | - | 4.98 | 4,170,681 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,483 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,866 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,778 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,917 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,949 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,246 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,441 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,349 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,317 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,084 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,698 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,527 |
| Pixelated United States Map | 0 | - | 4.88 | 94,779 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,497 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,411 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,030 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,230 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,246 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,295 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,316 |
| U.S. States By Population | 0 | - | 4.92 | 154,101 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,183 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,865 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,046 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,832 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,524 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,065 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,821 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,190 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,654 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,805 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,631 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,964 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,855 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,959 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,411 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,609 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,418 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,006 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,050 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,626 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,884 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,793 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,968 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,980 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,408 |
| States of Mexico | 0 | - | 4.96 | 178,134 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,569 |
| Central American Countries | 0 | - | 4.98 | 157,278 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,561 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,377 |
| Territories of the United States | 0 | - | 4.80 | 52,613 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,878 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,065 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,510 |
| New York City Geography | 0 | - | 4.43 | 33,184 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,723 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,671 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,272 |
| United States Country Quiz | 0 | - | 4.43 | 102,157 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,057 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,190 |
| American Foods | 0 | - | 3.66 | 39,435 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,603 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,250 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,622 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,770 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,463 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,106 |
| New England States | 0 | - | 4.51 | 59,893 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,041 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,114 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,127 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,272 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,133 |
| U.S. States by Borders | 0 | - | 4.62 | 35,467 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,693 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,674 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,326 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,438 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,914 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,211 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,822 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,453 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,502 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,855 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,344 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,252 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,578 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,035 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,254 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,078 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,959 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,291 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,149 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,233 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,624 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 57,494 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,257 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,975 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,264 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.44 | 70,516 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.74 | 64,200 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,568 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,834 |
| African-American Historical Figures | 0 | - | 4.18 | 17,283 |
| Flags of North and South America | 0 | - | 4.99 | 376,717 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,604 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,280 |
| Belize Country Quiz | 0 | - | 4.85 | 21,078 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,298 |
| Top U.S. Universities | 0 | - | 4.15 | 145,777 |
| Largest United States Airlines | 0 | - | 4.39 | 55,149 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,960 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,370 |
| U.S. States by Governor | 0 | - | 4.43 | 18,111 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,764 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,774 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,908 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 56,234 |
| Events in U.S. History | 0 | - | 4.41 | 28,818 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,191 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,601 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,856 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,498 |
| German Groups of Things | 0 | - | 4.47 | 38,628 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,017 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,923 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,325 |
| The Only American Country ... | 0 | - | 4.92 | 122,185 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,934 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,059 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,190 |
| Which Island in the United States? | 0 | - | 4.29 | 29,765 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,152 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,326 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,014 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,716 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,284 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,816 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,466 |
| Old West History | 0 | - | 4.34 | 15,297 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,534 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,983 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,776 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,050 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,562 |
| Flyover States | 0 | - | 4.53 | 29,589 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,254 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,389 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,951 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,787 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,708 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,525 |
| US States with the Most Executions | 0 | - | 4.51 | 26,424 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,157 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,255 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,246 |
| Canada Decoder | 0 | - | 4.07 | 18,767 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,939 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,563 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,684 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,685 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,219 |
| US States Quiz | 0 | - | 5.00 | 16,988,740 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,630 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,928 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,364 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,730 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,666 |
| Canada Country Quiz | 0 | - | 4.55 | 133,016 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,588 |
| Canada A-Z | 0 | - | 4.73 | 32,959 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,085 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,805 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,787 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,851 |
| History of Mexico | 0 | - | 4.52 | 15,361 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,459 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,758 |
| Word Chain - South America | 0 | - | 4.51 | 24,001 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,550 |
| States of Brazil | 0 | - | 4.97 | 89,629 |
| Famous Caribbean People | 0 | - | 4.37 | 12,658 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,555 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,514 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,204 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,891 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,740 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,078 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,087 |
| California Multiple Choice | 0 | - | 4.40 | 28,174 |
| Geography of California | 0 | - | 4.26 | 10,623 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,713 |
| San Francisco Trivia | 0 | - | 4.32 | 15,725 |
| San Francisco A-Z | 0 | - | 4.18 | 9,588 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,202 |
| Chicago City Trivia | 0 | - | 4.31 | 31,518 |
| Boston City Trivia | 0 | - | 4.38 | 24,198 |
