| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,593 |
| Pixelated United States Map | 0 | - | 4.88 | 94,652 |
| US States Quiz | 0 | - | 5.00 | 16,961,591 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,334 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,156 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,283 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,773 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,047 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,254 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,537 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,264 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,238 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,567 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,797 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,015 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,031 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,673 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,031 |
| U.S. States By Population | 0 | - | 4.92 | 153,963 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,992 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,758 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,716 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,445 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,955 |
| US States with an Empty Map | 0 | - | 5.00 | 627,473 |
| Flags of North and South America | 0 | - | 4.99 | 375,844 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,330 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,970 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,325 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,113 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,284 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,920 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,779 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,892 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,184 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,686 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,305 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,649 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,138 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,046 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,489 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,172 |
| States of Mexico | 0 | - | 4.96 | 177,633 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,440 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,891 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 56,157 |
| Washington State by Picture | 0 | - | 4.26 | 7,744 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,960 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,055 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,767 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,668 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,643 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,260 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,676 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,246 |
| United States Country Quiz | 0 | - | 4.43 | 102,003 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,022 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,643 |
| California Groups of Things | 0 | - | 4.26 | 45,705 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,305 |
| New York Groups of Things | 0 | - | 4.39 | 71,586 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,532 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,874 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,150 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,819 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,253 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,009 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,238 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,095 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,993 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,092 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,034 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,223 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,086 |
| U.S. States by Borders | 0 | - | 4.61 | 35,432 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,637 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,260 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,403 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,804 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,917 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,708 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,489 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,904 |
| Geography of California | 0 | - | 4.26 | 10,605 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,707 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,458 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,942 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,848 |
| History of Pennsylvania | 0 | - | 4.16 | 7,160 |
| History of Virginia | 0 | - | 4.31 | 11,631 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,073 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,003 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,582 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,297 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,105 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,896 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,048 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,944 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,555 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,819 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,118 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,346 |
| Belize Country Quiz | 0 | - | 4.85 | 21,059 |
| Top U.S. Universities | 0 | - | 4.15 | 145,626 |
| Largest United States Airlines | 0 | - | 4.39 | 55,123 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,918 |
| U.S. States by Governor | 0 | - | 4.43 | 18,106 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,741 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,203 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,553 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,888 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,754 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,111 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,985 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,204 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,145 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,897 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,637 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,466 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,581 |
| Famous Missourians | 0 | - | 4.12 | 6,428 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,322 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,430 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,722 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,502 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,574 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,433 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,461 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,262 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,848 |
| Events in U.S. History | 0 | - | 4.41 | 28,781 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,687 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,201 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,703 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,422 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,449 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,416 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,139 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,318 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,568 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,457 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,618 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,742 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,513 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,991 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,736 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,801 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,435 |
| American Founding Fathers | 0 | - | 4.42 | 23,259 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,251 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,953 |
| Movies Set in Miami | 0 | - | 4.32 | 16,709 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,793 |
| New York City Geography | 0 | - | 4.43 | 33,165 |
| People on Money - United States | 0 | - | 4.31 | 63,406 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,561 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,175 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,998 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,555 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,717 |
| Flyover States | 0 | - | 4.52 | 29,575 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,222 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,344 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,431 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,164 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,544 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,302 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,222 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,632 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,718 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,882 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,935 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,264 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,400 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,632 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,953 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,792 |
| Flags of Oceania | 0 | - | 5.00 | 261,813 |
| The Only American Country ... | 0 | - | 4.92 | 122,050 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,500 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,765 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,598 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,804 |
| Names of Generations | 0 | - | 4.09 | 45,388 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,779 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,070 |
| Regions of U.S. States | 0 | - | 4.37 | 44,101 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,406 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,619 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,918 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,347 |
| Movies by State | 0 | - | 4.27 | 40,592 |
| Canada Country Quiz | 0 | - | 4.55 | 132,896 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,499 |
| Canada A-Z | 0 | - | 4.73 | 32,930 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,195 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,279 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,635 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,277 |
