| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,073 |
| US States Quiz | 0 | - | 5.00 | 16,831,051 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,590 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,789 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,318 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,188 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,205 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,797 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,057 |
| Pixelated United States Map | 0 | - | 4.87 | 94,068 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,340 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,510 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,510 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,639 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,160 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,201 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,687 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,959 |
| U.S. States By Population | 0 | - | 4.92 | 153,004 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,185 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,313 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,124 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,101 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,458 |
| US States with an Empty Map | 0 | - | 5.00 | 623,240 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,104 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,133 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,536 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,380 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,596 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,336 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,723 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,893 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,821 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,420 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,477 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,394 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,799 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,833 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,737 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,818 |
| States of Mexico | 0 | - | 4.95 | 175,497 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,460 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,822 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,630 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,672 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,316 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,461 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,554 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,159 |
| United States Country Quiz | 0 | - | 4.43 | 101,310 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,822 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,909 |
| Famous Missourians | 0 | - | 4.12 | 6,401 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,255 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,019 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,887 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,289 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,292 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,783 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,924 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,217 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,847 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,045 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,923 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,677 |
| Chicago City Trivia | 0 | - | 4.31 | 31,433 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,297 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,807 |
| History of Pennsylvania | 0 | - | 4.16 | 7,129 |
| History of Virginia | 0 | - | 4.31 | 11,589 |
| Washington State by Picture | 0 | - | 4.26 | 7,716 |
| New England States | 0 | - | 4.51 | 59,782 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,846 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,700 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,747 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,982 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,434 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,145 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,687 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,914 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,873 |
| U.S. States by Borders | 0 | - | 4.61 | 35,256 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,022 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,425 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,943 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,746 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,710 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,173 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,853 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,465 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,732 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,394 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,291 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,710 |
| Flags of North and South America | 0 | - | 4.99 | 371,886 |
| Belize Country Quiz | 0 | - | 4.85 | 20,933 |
| Top U.S. Universities | 0 | - | 4.15 | 144,846 |
| Largest United States Airlines | 0 | - | 4.39 | 54,991 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,978 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,586 |
| U.S. States by Governor | 0 | - | 4.43 | 18,044 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,671 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,649 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,130 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 24,995 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,826 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,466 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,226 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,512 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,671 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,404 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,550 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,315 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,195 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,823 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,928 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,476 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,898 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,958 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,468 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,593 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,687 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,255 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,684 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,667 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,986 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 62,969 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 56,977 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,660 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,053 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,239 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,030 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,205 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,007 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,652 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,883 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,504 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,081 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,325 |
| American Founding Fathers | 0 | - | 4.42 | 23,200 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,372 |
| California Groups of Things | 0 | - | 4.25 | 45,420 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,247 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,767 |
| New York Groups of Things | 0 | - | 4.37 | 63,051 |
| New York City Geography | 0 | - | 4.42 | 33,054 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,503 |
| People on Money - United States | 0 | - | 4.31 | 63,321 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,406 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,988 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,783 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,506 |
| Flyover States | 0 | - | 4.52 | 29,478 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,076 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,071 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,313 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,074 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,273 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,020 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,472 |
| The Only American Country ... | 0 | - | 4.92 | 121,402 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,931 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,920 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,662 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,863 |
| States of Brazil | 0 | - | 4.97 | 87,639 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,358 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,168 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,189 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,324 |
| Names of Generations | 0 | - | 4.10 | 44,145 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,417 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,489 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,535 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,029 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,025 |
| Geography of California | 0 | - | 4.26 | 10,550 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,045 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,882 |
| Events in U.S. History | 0 | - | 4.40 | 28,621 |
| Regions of U.S. States | 0 | - | 4.37 | 43,792 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,369 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,550 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,832 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,898 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,271 |
| Movies by State | 0 | - | 4.27 | 40,526 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,060 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,180 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,796 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.47 | 26,403 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,354 |
| African-American Historical Figures | 0 | - | 4.18 | 17,173 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,898 |
| Canada Country Quiz | 0 | - | 4.54 | 132,319 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,061 |
| Canada A-Z | 0 | - | 4.73 | 32,773 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,944 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,329 |
