| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,256 |
| US States Quiz | 0 | - | 5.00 | 16,883,516 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,972 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,696 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,568 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,203 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,893 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,156 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,277 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,902 |
| Pixelated United States Map | 0 | - | 4.87 | 94,306 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,729 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,811 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,838 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,938 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,474 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,485 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,072 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,355 |
| U.S. States By Population | 0 | - | 4.92 | 153,587 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,498 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,466 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,364 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,232 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,654 |
| US States with an Empty Map | 0 | - | 5.00 | 624,882 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,184 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,482 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,525 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,645 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,798 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,506 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,112 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,271 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,034 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,685 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,695 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,121 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,923 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,357 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,958 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,798 |
| States of Mexico | 0 | - | 4.96 | 176,221 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,790 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,847 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,978 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,830 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,582 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,536 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,590 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,186 |
| United States Country Quiz | 0 | - | 4.43 | 101,554 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,901 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,462 |
| California Groups of Things | 0 | - | 4.25 | 45,498 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,266 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,401 |
| New York Groups of Things | 0 | - | 4.35 | 63,764 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,403 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,396 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,994 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,436 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,881 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,318 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,556 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,993 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,056 |
| New England States | 0 | - | 4.51 | 59,815 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,829 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,015 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,835 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,021 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,942 |
| U.S. States by Borders | 0 | - | 4.61 | 35,329 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,488 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,053 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,233 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,849 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,783 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,174 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,392 |
| Geography of California | 0 | - | 4.26 | 10,572 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,690 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,133 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,905 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,826 |
| History of Pennsylvania | 0 | - | 4.16 | 7,139 |
| History of Virginia | 0 | - | 4.31 | 11,601 |
| Washington State by Picture | 0 | - | 4.26 | 7,731 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,945 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,812 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,495 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,194 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,048 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,807 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,840 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,882 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,506 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,778 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,872 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,313 |
| Flags of North and South America | 0 | - | 4.99 | 373,345 |
| Belize Country Quiz | 0 | - | 4.85 | 20,983 |
| Top U.S. Universities | 0 | - | 4.15 | 145,179 |
| Largest United States Airlines | 0 | - | 4.39 | 55,038 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,751 |
| U.S. States by Governor | 0 | - | 4.43 | 18,064 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,703 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,685 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,063 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,879 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,160 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,052 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,848 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,504 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,493 |
| Famous Missourians | 0 | - | 4.12 | 6,408 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,256 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,375 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,689 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,442 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,562 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,360 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,330 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,214 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,832 |
| Events in U.S. History | 0 | - | 4.41 | 28,681 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,841 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,098 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,109 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,103 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,799 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,894 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,341 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,154 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,316 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,155 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,922 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,573 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,147 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 49,591 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,669 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,367 |
| American Founding Fathers | 0 | - | 4.42 | 23,229 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,123 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,938 |
| Movies Set in Miami | 0 | - | 4.32 | 16,699 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,778 |
| New York City Geography | 0 | - | 4.42 | 33,105 |
| People on Money - United States | 0 | - | 4.31 | 63,348 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,472 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,072 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,860 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,529 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,326 |
| Flyover States | 0 | - | 4.52 | 29,519 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,130 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,181 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,355 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,109 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,507 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,039 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,041 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,543 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,639 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,394 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,769 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,115 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,314 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,526 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,782 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,709 |
| The Only American Country ... | 0 | - | 4.92 | 121,655 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,152 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,505 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,513 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,498 |
| Names of Generations | 0 | - | 4.09 | 44,978 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,107 |
| Regions of U.S. States | 0 | - | 4.37 | 43,897 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,390 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,579 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,856 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,301 |
| Movies by State | 0 | - | 4.27 | 40,547 |
| Canada Country Quiz | 0 | - | 4.55 | 132,517 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,236 |
| Canada A-Z | 0 | - | 4.73 | 32,843 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,222 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,454 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,978 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,112 |
| States of Brazil | 0 | - | 4.97 | 88,213 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,200 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,447 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,919 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,833 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,045 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,040 |
| Chicago City Trivia | 0 | - | 4.31 | 31,457 |
