| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,979 |
| US States Quiz | 0 | - | 5.00 | 16,802,492 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,325 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,649 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,171 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,955 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,691 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,734 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,345 |
| Pixelated United States Map | 0 | - | 4.89 | 93,929 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,149 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,377 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,243 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,492 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,020 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,043 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,527 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,756 |
| U.S. States By Population | 0 | - | 4.92 | 152,880 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,027 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,235 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,037 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,038 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,366 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,030 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,987 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,325 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,218 |
| US States with an Empty Map | 0 | - | 5.00 | 622,070 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,497 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,259 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,526 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,684 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,623 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,782 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,119 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,344 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,224 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,651 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,755 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,567 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,745 |
| States of Mexico | 0 | - | 4.95 | 175,114 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,314 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,806 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,421 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,535 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,147 |
| United States Country Quiz | 0 | - | 4.43 | 101,175 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,786 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,297 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 24,970 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,507 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,217 |
| Countries Closest to Canada | 0 | - | 4.91 | 197,865 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,835 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,016 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,497 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,663 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,617 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,881 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,268 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,492 |
| New England States | 0 | - | 4.51 | 59,766 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,693 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,964 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,615 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,877 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,825 |
| U.S. States by Borders | 0 | - | 4.61 | 35,229 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,258 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,388 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,885 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,108 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,661 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,259 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,673 |
| Chicago City Trivia | 0 | - | 4.31 | 31,423 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,800 |
| History of Pennsylvania | 0 | - | 4.16 | 7,118 |
| History of Virginia | 0 | - | 4.31 | 11,577 |
| Washington State by Picture | 0 | - | 4.26 | 7,708 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,883 |
| Flags of North and South America | 0 | - | 4.99 | 370,979 |
| Belize Country Quiz | 0 | - | 4.85 | 20,904 |
| Top U.S. Universities | 0 | - | 4.15 | 144,645 |
| Largest United States Airlines | 0 | - | 4.39 | 54,949 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,826 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,533 |
| U.S. States by Governor | 0 | - | 4.43 | 18,026 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,636 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,622 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,121 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,815 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,446 |
| Famous Missourians | 0 | - | 4.12 | 6,394 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,208 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,660 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,381 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,543 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,296 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,184 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,820 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,805 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,653 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,404 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,129 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,782 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,464 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,818 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,001 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,899 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,724 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,641 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,423 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,565 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,840 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,633 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,214 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,608 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,447 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,717 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,643 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,311 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,269 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,774 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 62,748 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,746 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,423 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,864 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,979 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,840 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 38,977 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,795 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,591 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,857 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,466 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,043 |
| American Founding Fathers | 0 | - | 4.42 | 23,174 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,324 |
| California Groups of Things | 0 | - | 4.25 | 45,356 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,230 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,758 |
| New York Groups of Things | 0 | - | 4.38 | 60,631 |
| New York City Geography | 0 | - | 4.42 | 33,037 |
| Famous People from Oklahoma | 0 | - | 4.00 | 6,225 |
| People on Money - United States | 0 | - | 4.31 | 63,296 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,361 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,923 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,744 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,499 |
| Flyover States | 0 | - | 4.52 | 29,460 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,043 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,025 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,290 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,050 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,200 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,740 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,439 |
| The Only American Country ... | 0 | - | 4.92 | 121,272 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,815 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,281 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,984 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,250 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,040 |
| Regions of U.S. States | 0 | - | 4.37 | 43,707 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,360 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,532 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,824 |
| Events by U.S. State #2 | 0 | - | 4.27 | 18,582 |
| Movies by State | 0 | - | 4.27 | 40,509 |
| People by U.S. State - Multiple Choice | 0 | - | 4.06 | 9,818 |
| Canada Country Quiz | 0 | - | 4.54 | 132,197 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,967 |
| Canada A-Z | 0 | - | 4.73 | 32,742 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,267 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,576 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,565 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,527 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,518 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 44,781 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,236 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 30,649 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,266 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 37,307 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,479 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,742 |
| States of Brazil | 0 | - | 4.97 | 87,319 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,572 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,912 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,933 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,179 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,853 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,320 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,104 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,407 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,402 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,223 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,257 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,362 |
