| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,597 |
| US States Quiz | 0 | - | 5.00 | 16,962,906 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,339 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,164 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,295 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,813 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,050 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,269 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,574 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,490 |
| Pixelated United States Map | 0 | - | 4.88 | 94,656 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,279 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,247 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,572 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,808 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,030 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,045 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,692 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,053 |
| U.S. States By Population | 0 | - | 4.92 | 153,969 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,001 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,763 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,727 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,451 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,961 |
| US States with an Empty Map | 0 | - | 5.00 | 627,513 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,330 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,979 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,336 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,122 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,290 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,926 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,793 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,901 |
| New York Groups of Things | 0 | - | 4.39 | 71,608 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,195 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,690 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,311 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,657 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,143 |
| States of Mexico | 0 | - | 4.96 | 177,658 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,444 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,057 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,768 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,669 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,646 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,261 |
| United States Country Quiz | 0 | - | 4.43 | 102,014 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,025 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,644 |
| California Groups of Things | 0 | - | 4.26 | 45,706 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,985 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,311 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,583 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,540 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,884 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,153 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,822 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,259 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,041 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,253 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,347 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,098 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,050 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,070 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,997 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,093 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,041 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,224 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,087 |
| U.S. States by Borders | 0 | - | 4.61 | 35,432 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,052 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,642 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,265 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,404 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,811 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,920 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,878 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,916 |
| Geography of California | 0 | - | 4.26 | 10,606 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,462 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,331 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,075 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,006 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,584 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,300 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,106 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,898 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,049 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,944 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,556 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,819 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,123 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,347 |
| Flags of North and South America | 0 | - | 4.99 | 375,887 |
| Belize Country Quiz | 0 | - | 4.85 | 21,059 |
| Top U.S. Universities | 0 | - | 4.15 | 145,632 |
| Largest United States Airlines | 0 | - | 4.39 | 55,125 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,923 |
| U.S. States by Governor | 0 | - | 4.43 | 18,108 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,742 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,755 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,111 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,891 |
| Hawaiian Islands | 0 | - | 4.83 | 42,863 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,467 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,431 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,461 |
| Events in U.S. History | 0 | - | 4.41 | 28,782 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,424 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,454 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,422 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,141 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,322 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,570 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,459 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,620 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,752 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,515 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,994 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,679 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,250 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,752 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,808 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,436 |
| American Founding Fathers | 0 | - | 4.42 | 23,262 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,253 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,954 |
| Movies Set in Miami | 0 | - | 4.32 | 16,711 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 56,160 |
| Musical Acts from New York City | 0 | - | 3.80 | 10,185 |
| New York City Geography | 0 | - | 4.43 | 33,166 |
| People on Money - United States | 0 | - | 4.31 | 63,407 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,563 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,175 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,003 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,555 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,722 |
| Flyover States | 0 | - | 4.52 | 29,575 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,222 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,348 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,433 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,167 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,544 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,306 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,223 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,633 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,719 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,884 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,936 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,265 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,402 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,632 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,955 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,798 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,963 |
| The Only American Country ... | 0 | - | 4.92 | 122,057 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,510 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,771 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,607 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,806 |
| Names of Generations | 0 | - | 4.09 | 45,394 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,787 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,174 |
| Regions of U.S. States | 0 | - | 4.37 | 44,104 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,406 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,619 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,920 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,347 |
| Movies by State | 0 | - | 4.27 | 40,592 |
| Canada Country Quiz | 0 | - | 4.55 | 132,898 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,499 |
| Canada A-Z | 0 | - | 4.73 | 32,931 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,622 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,640 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,546 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,440 |
| States of Brazil | 0 | - | 4.97 | 89,218 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,226 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,490 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,634 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,338 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,069 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,074 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,708 |
| Chicago City Trivia | 0 | - | 4.31 | 31,500 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,848 |
| History of Pennsylvania | 0 | - | 4.16 | 7,160 |
| History of Virginia | 0 | - | 4.31 | 11,631 |
| Washington State by Picture | 0 | - | 4.26 | 7,744 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,955 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,181 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,339 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,863 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.48 | 26,475 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,386 |
| African-American Historical Figures | 0 | - | 4.18 | 17,256 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,808 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,465 |
