| United States Map Quiz | 0 | - | 4.98 | 4,140,398 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,080 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,894 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,235 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,805 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,000 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,458 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,495 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,587 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,292 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,498 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,568 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,147 |
| Pixelated United States Map | 0 | - | 4.89 | 93,405 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,358 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,779 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,630 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,283 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,328 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,556 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,820 |
| U.S. States By Population | 0 | - | 4.92 | 152,293 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,311 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,807 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,855 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,482 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,730 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,819 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,810 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,047 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,428 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,041 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,630 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,778 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,906 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,521 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,576 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,449 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,017 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,893 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,790 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,289 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,602 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,897 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,850 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,177 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,678 |
| States of Mexico | 0 | - | 4.95 | 173,179 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,708 |
| Central American Countries | 0 | - | 4.98 | 154,951 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,707 |
| Territories of the United States | 0 | - | 4.79 | 52,113 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,360 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,470 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,706 |
| New York City Geography | 0 | - | 4.42 | 32,896 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,245 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,464 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,072 |
| United States Country Quiz | 0 | - | 4.43 | 100,516 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,586 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,621 |
| American Foods | 0 | - | 3.66 | 39,271 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,281 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,078 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,628 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,745 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,573 |
| New England States | 0 | - | 4.51 | 59,701 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,453 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,878 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,287 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,604 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,646 |
| U.S. States by Borders | 0 | - | 4.63 | 35,053 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,347 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,218 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,104 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,973 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,285 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,765 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,403 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,851 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,192 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,390 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,917 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,285 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,132 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,811 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,535 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,809 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,503 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,570 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,154 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,265 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,017 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,947 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,757 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,011 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 58,990 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.73 | 63,455 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,382 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,657 |
| African-American Historical Figures | 0 | - | 4.18 | 17,120 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,385 |
| Flags of North and South America | 0 | - | 4.99 | 366,308 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,019 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,657 |
| Belize Country Quiz | 0 | - | 4.85 | 20,788 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,036 |
| Top U.S. Universities | 0 | - | 4.15 | 143,975 |
| Largest United States Airlines | 0 | - | 4.39 | 54,821 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,356 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,404 |
| U.S. States by Governor | 0 | - | 4.43 | 17,977 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,564 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,539 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,746 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,668 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,982 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,440 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,196 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,228 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,219 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,337 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,987 |
| The Only American Country ... | 0 | - | 4.92 | 120,692 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,654 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,672 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,030 |
| Which Island in the United States? | 0 | - | 4.29 | 29,138 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,783 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,333 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,923 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,661 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,148 |
| Old West History | 0 | - | 4.33 | 15,219 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,488 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,843 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,636 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,582 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,456 |
| Flyover States | 0 | - | 4.52 | 29,378 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,897 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,773 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,970 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,571 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,345 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,140 |
| US States with the Most Executions | 0 | - | 4.51 | 26,347 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,910 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,583 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,056 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,015 |
| Canada Decoder | 0 | - | 4.12 | 18,642 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,693 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,359 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,404 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,047 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,236 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,291 |
| US States Quiz | 0 | - | 5.00 | 16,687,385 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,486 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,758 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,190 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,567 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,299 |
| Canada Country Quiz | 0 | - | 4.54 | 131,663 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,572 |
| Canada A-Z | 0 | - | 4.73 | 32,634 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,020 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,031 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,855 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| History of Mexico | 0 | - | 4.58 | 15,224 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,089 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,855 |
| Word Chain - South America | 0 | - | 4.51 | 23,758 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,356 |
| States of Brazil | 0 | - | 4.98 | 86,279 |
| Famous Caribbean People | 0 | - | 4.37 | 12,563 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,904 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,352 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,692 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,183 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,637 |
| Senators Who Ran For President | 0 | - | 4.24 | 16,987 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 21,965 |
| California Multiple Choice | 0 | - | 4.40 | 28,036 |
| Geography of California | 0 | - | 4.25 | 10,494 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,648 |
| San Francisco Trivia | 0 | - | 4.32 | 15,658 |
| San Francisco A-Z | 0 | - | 4.18 | 9,519 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,164 |
| Chicago City Trivia | 0 | - | 4.31 | 31,374 |
| Boston City Trivia | 0 | - | 4.38 | 24,129 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,794 |
