| Cities and Towns of Massachusetts | 0 | - | 4.90 | 61,448 |
| United States Map Quiz | 0 | - | 4.98 | 3,921,767 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.85 | 22,151 |
| U.S. State Border Crossings | 0 | - | 4.96 | 82,670 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,241 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.84 | 34,197 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 65,959 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 55,393 |
| Total United States Immigration by Country | 0 | - | 4.89 | 97,498 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 148,326 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 187,309 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 67,930 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 341,857 |
| Pixelated United States Map | 0 | - | 4.90 | 82,991 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 94,461 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 79,626 |
| The 13 Colonies Quiz | 0 | - | 4.96 | 101,266 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 97,054 |
| 10 Southernmost U.S. States | 0 | - | 4.85 | 100,131 |
| U.S. States with Short Names | 0 | - | 4.87 | 131,173 |
| U.S. States that Start with M | 0 | - | 4.91 | 151,732 |
| U.S. States By Population | 0 | - | 4.90 | 130,892 |
| U.S. States that Start with N | 0 | - | 4.95 | 156,395 |
| U.S. States with Longest Names | 0 | - | 4.85 | 36,459 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 74,427 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 78,480 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 58,733 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 56,663 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 146,303 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 168,443 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 99,531 |
| Top 10 Least Obese U.S. States | 0 | - | 4.81 | 68,938 |
| Countries of North America Quiz | 0 | - | 5.00 | 890,136 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 588,608 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,901 |
| Countries that Beat the United States | 0 | - | 4.92 | 147,129 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.78 | 57,654 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 90,317 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 73,855 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 856,491 |
| North American Capitals - Map Quiz | 0 | - | 4.91 | 47,831 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 48,559 |
| Canada Provinces and Territories | 0 | - | 5.00 | 292,092 |
| States of Mexico | 0 | - | 4.94 | 143,551 |
| Mexico States Map Quiz | 0 | - | 4.84 | 91,395 |
| Central American Countries | 0 | - | 4.98 | 140,605 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 104,998 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 117,527 |
| Territories of the United States | 0 | - | 4.77 | 48,826 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 161,045 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,708 |
| Florida Pro Sport Teams | 0 | - | 4.66 | 10,457 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 72,362 |
| U.S. State Nicknames Quiz | 0 | - | 4.48 | 46,514 |
| U.S. National Parks Quiz | 0 | - | 4.78 | 47,301 |
| Countries with American Expatriates | 0 | - | 4.58 | 41,064 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,484 |
| United States Country Quiz | 0 | - | 4.44 | 90,122 |
| Busiest Air Routes from the U.S. | 0 | - | 4.47 | 72,870 |
| Canada or Africa by Area | 0 | - | 4.81 | 14,083 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 56,010 |
| New York City Geography | 0 | - | 4.40 | 23,458 |
| Countries Closest to Canada | 0 | - | 4.90 | 185,453 |
| U.S. Federal Holidays | 0 | - | 4.29 | 96,187 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,844 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 199,424 |
| New England States | 0 | - | 4.52 | 52,513 |
| US States by Land Area | 0 | - | 4.54 | 48,774 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 36,334 |
| Add a Letter - Make a U.S. State | 0 | - | 4.75 | 76,989 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 51,434 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 37,519 |
| Save Americans by Guessing U.S. States | 0 | - | 4.57 | 152,809 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 53,214 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 82,970 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,741 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 94,055 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,547 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 61,645 |
| Top 10 Newest U.S. States | 0 | - | 4.79 | 68,424 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 61,976 |
| Top 10 Most Obese U.S. States | 0 | - | 4.52 | 77,330 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.49 | 64,916 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.45 | 48,623 |
| Top 10 Most White U.S. States | 0 | - | 4.53 | 56,124 |
| Top 10 Most German U.S. States | 0 | - | 4.50 | 42,473 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,655 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 42,368 |
| Countries that Beat Canada | 0 | - | 4.91 | 78,784 |
| Red State or Blue State Trait? | 0 | - | 4.44 | 48,941 |
| California Multiple Choice | 0 | - | 4.40 | 26,953 |
| California Pro Sport Teams | 0 | - | 4.25 | 22,154 |
| San Francisco Trivia | 0 | - | 4.34 | 15,229 |
| San Francisco A-Z | 0 | - | 4.20 | 9,071 |
| Florida Multiple Choice | 0 | - | 4.30 | 9,750 |
| Chicago City Trivia | 0 | - | 4.26 | 30,462 |
| Boston Trivia | 0 | - | 4.37 | 23,483 |
| Boston Talk to English Translation Quiz | 0 | - | 4.46 | 14,241 |
| Texas Pro Sport Teams | 0 | - | 4.13 | 16,263 |
| History of Pennsylvania | 0 | - | 4.09 | 6,482 |
| History of Virginia | 0 | - | 4.33 | 10,974 |
| Washington State by Picture | 0 | - | 4.18 | 7,175 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 54,229 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 53,098 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.75 | 42,619 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 58,447 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 34,125 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.41 | 50,179 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.65 | 46,877 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,848 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 108,421 |
| South America Map Quiz | 0 | - | 5.00 | 1,430,762 |
| Belize Country Quiz | 0 | - | 4.88 | 18,943 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 17,238 |
| Top U.S. Universities | 0 | - | 4.12 | 114,185 |
| Largest United States Airlines | 0 | - | 4.38 | 52,239 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 107,839 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,012 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,264 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,799 |
| North Carolina... or South Carolina? | 0 | - | 4.22 | 9,751 |
| Canada Immigration by Country | 0 | - | 4.52 | 57,641 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 313,304 |
| The Only American Country ... | 0 | - | 4.94 | 110,680 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 101,622 |
| Dominica Country Quiz | 0 | - | 4.83 | 17,963 |
| North America Capitals Quiz | 0 | - | 4.99 | 188,474 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.11 | 26,113 |
| American Islands | 0 | - | 4.16 | 15,798 |
| American Foods | 0 | - | 3.71 | 38,240 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 5,718 |
| American Legal Vocabulary | 0 | - | 4.40 | 32,279 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 31,940 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,593 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.19 | 13,711 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,448 |
| U.S. Groups of Three Quiz | 0 | - | 4.05 | 19,610 |
| American Geography Quiz for Dummies | 0 | - | 4.33 | 53,314 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 40,043 |
| University of California Campuses | 0 | - | 3.88 | 8,139 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 25,322 |
| Old West History | 0 | - | 4.28 | 14,810 |
| Life of Benjamin Franklin | 0 | - | 4.20 | 6,236 |
| American Revolution - Multiple Choice | 0 | - | 4.32 | 18,891 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 71,129 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,570 |
| Flyover States | 0 | - | 4.51 | 28,108 |
| U.S. States With Double Letters | 0 | - | 4.67 | 4,423 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.30 | 58,128 |
| U.S. States by Borders | 0 | - | 4.56 | 26,496 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 121,338 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 27,865 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.71 | 30,123 |
| U.S. States with Oldest Median Age | 0 | - | 4.32 | 31,878 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 41,205 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.34 | 63,332 |
| US States with the Most Executions | 0 | - | 4.51 | 25,719 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.60 | 27,144 |
| Top 10 Least White U.S. States | 0 | - | 4.19 | 36,728 |
| Top 10 Least Happy U.S. States | 0 | - | 4.55 | 22,442 |
| US States Quiz | 0 | - | 5.00 | 14,891,974 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,578 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 19,066 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 40,332 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 35,262 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 31,216 |
| Canada Country Quiz | 0 | - | 4.54 | 122,207 |
| Canada Cities Map Quiz | 0 | - | 4.55 | 109,987 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,292 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 73,648 |
| History of Mexico | 0 | - | 4.55 | 14,003 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 95,147 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 40,908 |
| Brazil States Map Quiz | 0 | - | 4.83 | 40,272 |
| States of Brazil | 0 | - | 4.97 | 69,998 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,476 |
| U.S. States by Picture #1 | 0 | - | 4.17 | 14,415 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 74,001 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 63,753 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,339 |
| U.S. Electoral College Landslides | 0 | - | 4.33 | 21,071 |
| Geography of California | 0 | - | 4.23 | 9,714 |
| New York Pro Sport Teams | 0 | - | 4.30 | 24,689 |
| Events in U.S. History | 0 | - | 4.38 | 26,293 |
| Embarrassing Chapters in US History | 0 | - | 4.15 | 31,581 |
| African-American Historical Figures | 0 | - | 4.14 | 16,439 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 74,109 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,993 |
| Canadian Geography on the Map | 0 | - | 4.56 | 24,331 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 83,706 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 69,019 |
| Jamaica Country Quiz | 0 | - | 4.59 | 32,365 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,202,348 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 159,215 |
| The Life of Thomas Edison | 0 | - | 4.03 | 4,659 |
| U.S. History Multiple Choice #2 | 0 | - | 4.37 | 24,049 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 21,287 |
| U.S. History Multiple Choice #3 | 0 | - | 4.40 | 23,516 |
| Valid Answer - U.S. History | 0 | - | 4.19 | 21,467 |
| U.S. History Multiple Choice #4 | 0 | - | 4.25 | 24,245 |
