| United States Map Quiz | 0 | - | 4.98 | 3,921,202 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 148,274 |
| U.S. State Border Crossings | 0 | - | 4.96 | 82,661 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,204 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.84 | 34,162 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 65,929 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 61,406 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 55,364 |
| Total United States Immigration by Country | 0 | - | 4.89 | 97,474 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 187,217 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,917 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 341,793 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.85 | 22,138 |
| Pixelated United States Map | 0 | - | 4.90 | 82,956 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 94,421 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 79,586 |
| The 13 Colonies Quiz | 0 | - | 4.96 | 101,243 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 97,014 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 100,108 |
| U.S. States with Short Names | 0 | - | 4.87 | 131,120 |
| U.S. States that Start with M | 0 | - | 4.91 | 151,696 |
| U.S. States By Population | 0 | - | 4.90 | 130,870 |
| U.S. States that Start with N | 0 | - | 4.95 | 156,357 |
| U.S. States with Longest Names | 0 | - | 4.85 | 36,445 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 74,396 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 78,459 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 58,727 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 56,640 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 146,254 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 168,398 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 99,497 |
| Top 10 Least Obese U.S. States | 0 | - | 4.81 | 68,887 |
| Countries of North America Quiz | 0 | - | 5.00 | 889,811 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 588,498 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,876 |
| Countries that Beat the United States | 0 | - | 4.92 | 147,075 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 90,275 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 73,823 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 101,591 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 856,375 |
| North American Capitals - Map Quiz | 0 | - | 4.91 | 47,808 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 48,528 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,439 |
| U.S. Groups of Three Quiz | 0 | - | 4.05 | 19,606 |
| Canada Provinces and Territories | 0 | - | 5.00 | 291,986 |
| States of Mexico | 0 | - | 4.95 | 143,498 |
| Mexico States Map Quiz | 0 | - | 4.84 | 91,371 |
| Central American Countries | 0 | - | 4.98 | 140,553 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 104,977 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 117,496 |
| Territories of the United States | 0 | - | 4.77 | 48,815 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 160,995 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,700 |
| U.S. State Nicknames Quiz | 0 | - | 4.48 | 46,503 |
| U.S. National Parks Quiz | 0 | - | 4.78 | 47,268 |
| Countries with American Expatriates | 0 | - | 4.58 | 41,063 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,477 |
| United States Country Quiz | 0 | - | 4.44 | 90,076 |
| Busiest Air Routes from the U.S. | 0 | - | 4.47 | 72,857 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.78 | 57,633 |
| Canada or Africa by Area | 0 | - | 4.81 | 14,062 |
| American Foods | 0 | - | 3.71 | 38,240 |
| Countries Closest to Canada | 0 | - | 4.90 | 185,413 |
| U.S. Federal Holidays | 0 | - | 4.29 | 96,178 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,843 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 199,411 |
| New England States | 0 | - | 4.52 | 52,511 |
| US States by Land Area | 0 | - | 4.54 | 48,758 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 36,328 |
| Add a Letter - Make a U.S. State | 0 | - | 4.75 | 76,967 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 51,423 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 37,516 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 53,206 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 82,953 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,732 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 94,038 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,541 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 61,641 |
| Top 10 Newest U.S. States | 0 | - | 4.79 | 68,410 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 61,969 |
| Top 10 Most Obese U.S. States | 0 | - | 4.53 | 76,342 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.49 | 64,902 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.45 | 48,606 |
| Top 10 Most White U.S. States | 0 | - | 4.53 | 56,104 |
| Top 10 Most German U.S. States | 0 | - | 4.50 | 42,467 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,652 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 42,352 |
| Countries that Beat Canada | 0 | - | 4.91 | 78,758 |
| Europe Geography Decoder | 0 | - | 4.88 | 63,875 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 387,093 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,474 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 54,221 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 53,089 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.75 | 42,613 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 58,443 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 34,122 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,842 |
| African-American Historical Figures | 0 | - | 4.14 | 16,437 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 21,050 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 72,348 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 108,367 |
| South America Map Quiz | 0 | - | 5.00 | 1,430,439 |
| Belize Country Quiz | 0 | - | 4.88 | 18,940 |
| Top U.S. Universities | 0 | - | 4.12 | 114,160 |
| Largest United States Airlines | 0 | - | 4.38 | 52,229 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 107,818 |
| Name a Valid Answer - United States #1 | 0 | - | 4.65 | 86,945 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,010 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,261 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,796 |
| Florida Pro Sport Teams | 0 | - | 4.66 | 10,449 |
| Canada Immigration by Country | 0 | - | 4.52 | 57,627 |
| German Groups of Things | 0 | - | 4.43 | 36,173 |
| Top Five Countries By Category #2 | 0 | - | 4.92 | 158,524 |
| Top Five Countries By Category #3 | 0 | - | 4.86 | 143,968 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 46,356 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 313,173 |
| The Only American Country ... | 0 | - | 4.94 | 110,638 |
| North America Capitals Quiz | 0 | - | 4.99 | 188,350 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.11 | 26,109 |
| American Islands | 0 | - | 4.16 | 15,798 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 5,717 |
| American Legal Vocabulary | 0 | - | 4.40 | 32,275 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 31,933 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,586 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.19 | 13,707 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 40,038 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 56,003 |
| New York City Geography | 0 | - | 4.40 | 23,457 |
| Old West History | 0 | - | 4.28 | 14,809 |
| Life of Benjamin Franklin | 0 | - | 4.20 | 6,234 |
| American Revolution - Multiple Choice | 0 | - | 4.32 | 18,886 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 71,111 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,570 |
| Flyover States | 0 | - | 4.51 | 28,096 |
| U.S. States With Double Letters | 0 | - | 4.67 | 4,417 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.30 | 58,117 |
| U.S. States by Borders | 0 | - | 4.56 | 26,489 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 121,322 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 27,862 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.71 | 30,114 |
| U.S. States with Oldest Median Age | 0 | - | 4.32 | 31,870 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 41,190 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.34 | 63,320 |
| US States with the Most Executions | 0 | - | 4.51 | 25,717 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.60 | 27,140 |
| Top 10 Least White U.S. States | 0 | - | 4.19 | 36,718 |
| Top 10 Least Happy U.S. States | 0 | - | 4.55 | 22,436 |
| Canada Decoder | 0 | - | 4.10 | 17,894 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 66,920 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 164,644 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 78,836 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.82 | 48,152 |
| Top Five Countries By Fruit Production | 0 | - | 4.93 | 43,862 |
| US States Quiz | 0 | - | 5.00 | 14,886,257 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,575 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 19,062 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 40,326 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 35,255 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 31,207 |
| Canada Country Quiz | 0 | - | 4.54 | 122,170 |
| Canada Cities Map Quiz | 0 | - | 4.55 | 109,970 |
| British Groups of Things | 0 | - | 4.26 | 80,572 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,051 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 83,393 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 80,495 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,227 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 73,628 |
| Hispanic Last Names in the U.S. | 0 | - | 4.29 | 52,804 |
| Mexican Foods | 0 | - | 4.08 | 13,641 |
| History of Mexico | 0 | - | 4.55 | 13,997 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 95,116 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 40,882 |
| Word Chain - South America | 0 | - | 4.49 | 22,205 |
| Brazil States Map Quiz | 0 | - | 4.83 | 40,238 |
| States of Brazil | 0 | - | 4.97 | 69,946 |
| Famous Caribbean People | 0 | - | 4.36 | 12,152 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.18 | 704,771 |
| U.S. States by Picture #1 | 0 | - | 4.17 | 14,414 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 73,928 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 63,720 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,339 |
| U.S. Electoral College Landslides | 0 | - | 4.33 | 21,066 |
| California Multiple Choice | 0 | - | 4.40 | 26,948 |
| Geography of California | 0 | - | 4.23 | 9,713 |
| California Pro Sport Teams | 0 | - | 4.25 | 22,152 |
| San Francisco Trivia | 0 | - | 4.34 | 15,229 |
| San Francisco A-Z | 0 | - | 4.20 | 9,070 |
| Florida Multiple Choice | 0 | - | 4.30 | 9,749 |
| Chicago City Trivia | 0 | - | 4.26 | 30,459 |
| Boston Trivia | 0 | - | 4.37 | 23,483 |
| Boston Talk to English Translation Quiz | 0 | - | 4.46 | 14,240 |
| New York Pro Sport Teams | 0 | - | 4.30 | 24,687 |
| Texas Pro Sport Teams | 0 | - | 4.13 | 16,263 |
| History of Pennsylvania | 0 | - | 4.09 | 6,478 |
| History of Virginia | 0 | - | 4.33 | 10,972 |
| Washington State by Picture | 0 | - | 4.18 | 7,175 |
| Events in U.S. History | 0 | - | 4.38 | 26,285 |
| Embarrassing Chapters in US History | 0 | - | 4.15 | 31,575 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 74,081 |
