| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,717 |
| US States Quiz | 0 | - | 5.00 | 16,996,089 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,482 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,406 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,547 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,469 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,098 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,658 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,381 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,118 |
| Pixelated United States Map | 0 | - | 4.88 | 94,818 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,543 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,446 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,786 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,080 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,277 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,308 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,352 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,368 |
| U.S. States By Population | 0 | - | 4.92 | 154,143 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,230 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,892 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,862 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,540 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,095 |
| US States with an Empty Map | 0 | - | 5.00 | 628,690 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,396 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,221 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,664 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,713 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,288 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,461 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,036 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,125 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,231 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,711 |
| California Groups of Things | 0 | - | 4.26 | 45,771 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,530 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,859 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,504 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,835 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,208 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,535 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,263 |
| States of Mexico | 0 | - | 4.96 | 178,253 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,640 |
| Geography of California | 0 | - | 4.26 | 10,627 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,909 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,158 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,037 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,821 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,741 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,677 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,280 |
| United States Country Quiz | 0 | - | 4.43 | 102,194 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,068 |
| Los Angeles vs. New York | 0 | - | 4.41 | 20,029 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,319 |
| New York Groups of Things | 0 | - | 4.39 | 72,097 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,617 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,489 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,205 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 69,957 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 56,068 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,782 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,516 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,144 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,308 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,958 |
| New England States | 0 | - | 4.51 | 59,896 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,057 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,118 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,155 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,282 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,147 |
| U.S. States by Borders | 0 | - | 4.62 | 35,480 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,682 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,340 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,447 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,966 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,305 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,140 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,601 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,962 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,855 |
| History of Pennsylvania | 0 | - | 4.16 | 7,167 |
| History of Virginia | 0 | - | 4.33 | 11,642 |
| Washington State by Picture | 0 | - | 4.26 | 7,759 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,143 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,083 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,652 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 60,300 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,119 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,945 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,130 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,980 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,571 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,834 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,214 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,370 |
| Flags of North and South America | 0 | - | 4.99 | 376,988 |
| Belize Country Quiz | 0 | - | 4.85 | 21,084 |
| Top U.S. Universities | 0 | - | 4.15 | 145,822 |
| Largest United States Airlines | 0 | - | 4.39 | 55,159 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,980 |
| U.S. States by Governor | 0 | - | 4.43 | 18,112 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,764 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,777 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,131 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,227 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,183 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,918 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,657 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,501 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,608 |
| Famous Missourians | 0 | - | 4.12 | 6,434 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,351 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,463 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,746 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,524 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,579 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,470 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,504 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,281 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,861 |
| Events in U.S. History | 0 | - | 4.41 | 28,824 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,532 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,566 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,530 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,273 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,452 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,649 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,557 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,720 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,912 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,645 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,020 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,731 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,295 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,996 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,879 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,475 |
| American Founding Fathers | 0 | - | 4.42 | 23,273 |
| Movies Set in Miami | 0 | - | 4.32 | 16,713 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,799 |
| New York City Geography | 0 | - | 4.43 | 33,187 |
| People on Money - United States | 0 | - | 4.31 | 63,434 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,584 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,222 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,062 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,568 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,824 |
| Flyover States | 0 | - | 4.53 | 29,595 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,265 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,408 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,463 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,185 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,564 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,394 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,295 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,685 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,763 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,975 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 65,005 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,334 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,443 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,676 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,036 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,823 |
| The Only American Country ... | 0 | - | 4.92 | 122,215 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,670 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,891 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,822 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,945 |
| Names of Generations | 0 | - | 4.09 | 45,515 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,005 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,074 |
| Regions of U.S. States | 0 | - | 4.37 | 44,186 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,423 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,632 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,935 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,370 |
| Movies by State | 0 | - | 4.27 | 40,607 |
| Canada Country Quiz | 0 | - | 4.55 | 133,045 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,607 |
| Canada A-Z | 0 | - | 4.73 | 32,968 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,835 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,749 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,816 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,563 |
| States of Brazil | 0 | - | 4.97 | 89,709 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,234 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,516 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,988 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,897 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,082 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,089 |
| California Multiple Choice | 0 | - | 4.40 | 28,180 |
| San Francisco Trivia | 0 | - | 4.32 | 15,731 |
| San Francisco A-Z | 0 | - | 4.18 | 9,588 |
