| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,194 |
| US States Quiz | 0 | - | 5.00 | 16,864,638 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,922 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,910 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,581 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,417 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,847 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,855 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,334 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,758 |
| Pixelated United States Map | 0 | - | 4.87 | 94,235 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,591 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,715 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,731 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,810 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,361 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,374 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,925 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,206 |
| U.S. States By Population | 0 | - | 4.92 | 153,507 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,384 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,418 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,253 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,190 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,583 |
| US States with an Empty Map | 0 | - | 5.00 | 624,238 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,750 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,158 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,371 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,294 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,548 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,722 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,445 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,957 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,127 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,876 |
| New York Groups of Things | 0 | - | 4.35 | 63,600 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,780 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,615 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,591 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,955 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,885 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,910 |
| States of Mexico | 0 | - | 4.95 | 175,905 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,695 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,836 |
| New York City Geography | 0 | - | 4.42 | 33,090 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,897 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,738 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,501 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,497 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,578 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,169 |
| United States Country Quiz | 0 | - | 4.43 | 101,470 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,866 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,353 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,422 |
| California Groups of Things | 0 | - | 4.25 | 45,476 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,849 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,259 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,480 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,242 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,362 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,283 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,957 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,522 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,286 |
| Countries that Beat Canada | 0 | - | 4.90 | 96,002 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,395 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,852 |
| United States Map Quiz | 0 | - | 4.98 | 4,157,245 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,923 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,359 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,969 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,275 |
| Geography of California | 0 | - | 4.26 | 10,562 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,683 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,076 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,821 |
| History of Pennsylvania | 0 | - | 4.16 | 7,133 |
| History of Virginia | 0 | - | 4.31 | 11,597 |
| Washington State by Picture | 0 | - | 4.26 | 7,727 |
| New England States | 0 | - | 4.51 | 59,803 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,910 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,775 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,793 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,006 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,467 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,179 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,787 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,908 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,986 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,911 |
| U.S. States by Borders | 0 | - | 4.61 | 35,300 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,039 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,474 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,022 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,788 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,795 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,206 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,874 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,488 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,767 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,774 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,302 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,751 |
| Flags of North and South America | 0 | - | 4.99 | 372,820 |
| Belize Country Quiz | 0 | - | 4.85 | 20,964 |
| Top U.S. Universities | 0 | - | 4.15 | 145,064 |
| Largest United States Airlines | 0 | - | 4.39 | 55,020 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,126 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,641 |
| U.S. States by Governor | 0 | - | 4.43 | 18,059 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,687 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,670 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,049 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,146 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,024 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,839 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,490 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,386 |
| Famous Missourians | 0 | - | 4.12 | 6,406 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,142 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,366 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,523 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,682 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,425 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,557 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,337 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,307 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,206 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,825 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,086 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,491 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,985 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,011 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,516 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,624 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,732 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,290 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,751 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,695 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,067 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,069 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,059 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,757 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,755 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,315 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,118 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,291 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,107 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,710 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,907 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,548 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,121 |
| American Founding Fathers | 0 | - | 4.42 | 23,222 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,095 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,937 |
| Movies Set in Miami | 0 | - | 4.32 | 16,697 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,776 |
| Musical Acts from New York City | 0 | - | 3.80 | 10,157 |
| People on Money - United States | 0 | - | 4.31 | 63,341 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,447 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,038 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,835 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,518 |
| Flyover States | 0 | - | 4.52 | 29,505 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,105 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,138 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,337 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,095 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,346 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,086 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,507 |
| The Only American Country ... | 0 | - | 4.92 | 121,558 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,073 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,131 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,851 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,016 |
| States of Brazil | 0 | - | 4.97 | 87,928 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,451 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,393 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,197 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,431 |
| Names of Generations | 0 | - | 4.09 | 44,802 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,431 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,757 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,738 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,038 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,036 |
| Chicago City Trivia | 0 | - | 4.31 | 31,440 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,956 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,052 |
| Events in U.S. History | 0 | - | 4.41 | 28,660 |
| Regions of U.S. States | 0 | - | 4.37 | 43,855 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,382 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,568 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,843 |
| Events by U.S. State #2 | 0 | - | 4.27 | 18,607 |
| Movies by State | 0 | - | 4.27 | 40,538 |
