| US States Quiz | 0 | - | 5.00 | 17,002,141 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,722 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,510 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,446 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,589 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,616 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,113 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,750 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,588 |
| Pixelated United States Map | 0 | - | 4.88 | 94,834 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,591 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,470 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,822 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,097 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,307 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,340 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,390 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,410 |
| U.S. States By Population | 0 | - | 4.92 | 154,176 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,259 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,914 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,550 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,123 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,409 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,263 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,717 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,329 |
| US States with an Empty Map | 0 | - | 5.00 | 628,893 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,497 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,057 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,207 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,419 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,609 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,901 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,554 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,890 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,229 |
| States of Mexico | 0 | - | 4.96 | 178,350 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,682 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,175 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,827 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,756 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,680 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,283 |
| United States Country Quiz | 0 | - | 4.43 | 102,232 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,076 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,630 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,521 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,216 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,056 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 57,864 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,912 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,568 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,154 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,125 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,539 |
| New England States | 0 | - | 4.51 | 59,901 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,068 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,123 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,167 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,293 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,154 |
| U.S. States by Borders | 0 | - | 4.62 | 35,488 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,688 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,350 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,454 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,975 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,927 |
| Flags of North and South America | 0 | - | 4.99 | 377,261 |
| Belize Country Quiz | 0 | - | 4.85 | 21,097 |
| Top U.S. Universities | 0 | - | 4.15 | 145,865 |
| Largest United States Airlines | 0 | - | 4.39 | 55,167 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,023 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,891 |
| U.S. States by Governor | 0 | - | 4.43 | 18,115 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,769 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,781 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,796 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,911 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,581 |
| Events in U.S. History | 0 | - | 4.41 | 28,832 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,153 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,110 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,661 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.70 | 61,087 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,842 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,568 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,409 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,952 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,150 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,690 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,767 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,988 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 65,014 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,453 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,044 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,576 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,838 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,829 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,234 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,373 |
| O Canada Lyrics | 0 | - | 4.47 | 51,070 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,048 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,614 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,660 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,614 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,387 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,544 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,724 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,651 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,800 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 37,008 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,729 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,992 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,025 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,739 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,300 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,479 |
| American Founding Fathers | 0 | - | 4.42 | 23,274 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,720 |
| California Groups of Things | 0 | - | 4.26 | 45,776 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,960 |
| Movies Set in Miami | 0 | - | 4.32 | 16,715 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,320 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,800 |
| New York Groups of Things | 0 | - | 4.39 | 72,177 |
| People on Money - United States | 0 | - | 4.31 | 63,436 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,591 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,229 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,068 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,573 |
| Flyover States | 0 | - | 4.53 | 29,601 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,276 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,415 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,467 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,191 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,992 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,345 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,685 |
| The Only American Country ... | 0 | - | 4.92 | 122,235 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,905 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,848 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,971 |
| Names of Generations | 0 | - | 4.09 | 45,543 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,048 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,076 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,284 |
| Regions of U.S. States | 0 | - | 4.37 | 44,207 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,425 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,634 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,937 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,374 |
| Movies by State | 0 | - | 4.27 | 40,610 |
| Canada Country Quiz | 0 | - | 4.55 | 133,073 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,623 |
| Canada A-Z | 0 | - | 4.73 | 32,976 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,618 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,329 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,866 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,160 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,180 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,454 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,928 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,766 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,906 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,638 |
| States of Brazil | 0 | - | 4.97 | 89,775 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,017 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,076 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,949 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,235 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,111 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,360 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,724 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,482 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,518 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,067 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,261 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,096 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,084 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,218 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,565 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,089 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,907 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,068 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,135 |
| Geography of California | 0 | - | 4.26 | 10,630 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,713 |
| Los Angeles vs. New York | 0 | - | 4.41 | 20,036 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,229 |
| Chicago City Trivia | 0 | - | 4.31 | 31,521 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,185 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,921 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,659 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,507 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,617 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,964 |
| Famous Missourians | 0 | - | 4.12 | 6,434 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,355 |
