| United States Map Quiz | 0 | - | 4.98 | 4,140,962 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,102 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,925 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,270 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,826 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,025 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,466 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,721 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,612 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,637 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,505 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,596 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,189 |
| Pixelated United States Map | 0 | - | 4.89 | 93,433 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,403 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,808 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,675 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,309 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,363 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,593 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,860 |
| U.S. States By Population | 0 | - | 4.92 | 152,319 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,347 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,830 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,873 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,504 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,740 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,850 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,837 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,059 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,451 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,051 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,643 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,802 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,178 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,667 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,752 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,495 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,045 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,911 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,808 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,304 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,677 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,914 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,889 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,798 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,687 |
| States of Mexico | 0 | - | 4.95 | 173,243 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,748 |
| Central American Countries | 0 | - | 4.98 | 154,984 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,787 |
| Territories of the United States | 0 | - | 4.79 | 52,122 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,364 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,499 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,714 |
| New York City Geography | 0 | - | 4.42 | 32,906 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,251 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,468 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,072 |
| United States Country Quiz | 0 | - | 4.43 | 100,536 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,589 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,636 |
| American Foods | 0 | - | 3.66 | 39,272 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,310 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,086 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,630 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,788 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,577 |
| New England States | 0 | - | 4.51 | 59,704 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,468 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,880 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,297 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,615 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,653 |
| U.S. States by Borders | 0 | - | 4.63 | 35,058 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,423 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,223 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,114 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,977 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,292 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,769 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,408 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,863 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,197 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,400 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,941 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,300 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,141 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,838 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,549 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,825 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,520 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,645 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,156 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,270 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,020 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,956 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,761 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,013 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,001 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.73 | 63,474 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,386 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,662 |
| African-American Historical Figures | 0 | - | 4.18 | 17,121 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,400 |
| Flags of North and South America | 0 | - | 4.99 | 366,631 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,101 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,840 |
| Belize Country Quiz | 0 | - | 4.85 | 20,792 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,041 |
| Top U.S. Universities | 0 | - | 4.15 | 144,019 |
| Largest United States Airlines | 0 | - | 4.39 | 54,827 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,367 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,419 |
| U.S. States by Governor | 0 | - | 4.43 | 17,978 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,568 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,545 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,750 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,679 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,985 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,443 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,207 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,232 |
| German Groups of Things | 0 | - | 4.46 | 38,296 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,248 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,377 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,990 |
| The Only American Country ... | 0 | - | 4.92 | 120,714 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,662 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,745 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,032 |
| Which Island in the United States? | 0 | - | 4.29 | 29,143 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,786 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,343 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,928 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,664 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,150 |
| Old West History | 0 | - | 4.33 | 15,220 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,489 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,846 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,643 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,589 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,458 |
| Flyover States | 0 | - | 4.52 | 29,385 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,904 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,788 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,978 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,575 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,351 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,149 |
| US States with the Most Executions | 0 | - | 4.51 | 26,347 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,913 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,596 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,059 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,019 |
| Canada Decoder | 0 | - | 4.12 | 18,645 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,730 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,384 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,418 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,104 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,259 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,303 |
| US States Quiz | 0 | - | 5.00 | 16,691,918 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,490 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,760 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,195 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,570 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,300 |
| Canada Country Quiz | 0 | - | 4.54 | 131,677 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,583 |
| Canada A-Z | 0 | - | 4.73 | 32,639 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,050 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,047 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,873 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Mexican Foods | 0 | - | 4.07 | 14,607 |
| History of Mexico | 0 | - | 4.58 | 15,227 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,107 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,900 |
| Word Chain - South America | 0 | - | 4.51 | 23,759 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,362 |
| States of Brazil | 0 | - | 4.98 | 86,310 |
| Famous Caribbean People | 0 | - | 4.37 | 12,565 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,007 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,355 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,778 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,259 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,686 |
| Senators Who Ran For President | 0 | - | 4.24 | 16,989 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 21,967 |
| California Multiple Choice | 0 | - | 4.40 | 28,036 |
| Geography of California | 0 | - | 4.25 | 10,498 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,649 |
| San Francisco Trivia | 0 | - | 4.32 | 15,659 |
| San Francisco A-Z | 0 | - | 4.18 | 9,519 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,165 |
| Chicago City Trivia | 0 | - | 4.31 | 31,377 |
| Boston City Trivia | 0 | - | 4.38 | 24,129 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,798 |
