| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.83 | 61,922 |
| US States Quiz | 0 | - | 5.00 | 15,865,324 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 355,894 |
| U.S. National Parks Quiz | 0 | - | 4.81 | 50,940 |
| Total United States Immigration by Country | 0 | - | 4.89 | 104,481 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.95 | 166,462 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 202,033 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 70,614 |
| Pixelated United States Map | 0 | - | 4.89 | 88,757 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 101,901 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 85,646 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 183,448 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 110,273 |
| U.S. States with the Letter Y | 0 | - | 4.84 | 104,834 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 106,998 |
| U.S. States with Short Names | 0 | - | 4.89 | 140,626 |
| U.S. States that Start with M | 0 | - | 4.92 | 178,338 |
| U.S. States By Population | 0 | - | 4.90 | 137,118 |
| U.S. States that Start with N | 0 | - | 4.94 | 164,345 |
| U.S. States with Longest Names | 0 | - | 4.87 | 40,631 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 83,616 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 61,488 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 61,047 |
| US States with an Empty Map | 0 | - | 5.00 | 592,919 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 74,644 |
| 10 Longest Rivers in the United States | 0 | - | 4.84 | 37,184 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 307,018 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 140,203 |
| Countries that Beat the United States | 0 | - | 4.93 | 157,864 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 42,249 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 96,372 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 78,455 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 87,821 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 124,670 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 58,022 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 197,699 |
| Top 10 Coldest U.S. States | 0 | - | 4.92 | 107,965 |
| Top 10 Hottest U.S. States | 0 | - | 4.85 | 118,825 |
| Top 10 Most Native American U.S. States | 0 | - | 4.85 | 86,170 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.84 | 59,620 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 68,519 |
| States of Mexico | 0 | - | 4.93 | 157,898 |
| Mexico States Map Quiz | 0 | - | 4.81 | 97,906 |
| Florida Pro Sport Teams | 0 | - | 4.68 | 11,143 |
| Washington State by Picture | 0 | - | 4.24 | 7,432 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 48,482 |
| Countries with American Expatriates | 0 | - | 4.55 | 41,846 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 39,401 |
| United States Country Quiz | 0 | - | 4.45 | 95,931 |
| Busiest Air Routes from the U.S. | 0 | - | 4.47 | 75,184 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 41,298 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 25,319 |
| North Carolina... or South Carolina? | 0 | - | 4.18 | 10,199 |
| Countries Closest to Canada | 0 | - | 4.90 | 192,022 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.74 | 57,995 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 19,756 |
| Countries that Beat Canada | 0 | - | 4.90 | 83,686 |
| U.S. Geography by Letter - B | 0 | - | 4.51 | 63,456 |
| U.S. Geography by Letter - S | 0 | - | 4.53 | 48,538 |
| United States Map Quiz | 0 | - | 4.98 | 4,054,171 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 725,090 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 78,432 |
| California Pro Sport Teams | 0 | - | 4.23 | 22,434 |
| Chicago City Trivia | 0 | - | 4.29 | 30,970 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 66,220 |
| Texas Pro Sport Teams | 0 | - | 4.14 | 16,515 |
| History of Pennsylvania | 0 | - | 4.14 | 6,865 |
| History of Virginia | 0 | - | 4.34 | 11,331 |
| New England States | 0 | - | 4.51 | 59,045 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 51,183 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 63,235 |
| US States by Land Area | 0 | - | 4.63 | 50,818 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,299 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 55,399 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 54,180 |
| Add a Letter - Make a U.S. State | 0 | - | 4.71 | 79,988 |
| Events by U.S. State #1 | 0 | - | 4.42 | 22,423 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.71 | 53,766 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.77 | 39,273 |
| U.S. States by Borders | 0 | - | 4.61 | 33,936 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,382 |
| 10 Easternmost U.S. States | 0 | - | 4.55 | 54,876 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 85,383 |
| U.S. States with the Longest International Borders | 0 | - | 4.77 | 44,514 |
| Longest U.S. State Borders | 0 | - | 4.64 | 37,240 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 42,600 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,099 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 37,746 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,119 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 110,277 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 61,801 |
| Asian Last Names in the United States | 0 | - | 4.43 | 45,278 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 335,126 |
| Belize Country Quiz | 0 | - | 4.87 | 19,974 |
| Top U.S. Universities | 0 | - | 4.14 | 137,251 |
| Largest United States Airlines | 0 | - | 4.38 | 53,545 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 35,927 |
| Biggest Trading Partners - US | 0 | - | 4.63 | 104,551 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,525 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,005 |
| U.S. Government Agencies | 0 | - | 4.44 | 18,787 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 19,616 |
| Famous People from Indiana by Picture | 0 | - | 4.32 | 24,003 |
| Famous People from Maryland by Picture | 0 | - | 4.18 | 16,268 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 23,696 |
| Famous Missourians Quiz | 0 | - | 4.12 | 6,225 |
| Famous People from New Jersey by Picture | 0 | - | 4.16 | 21,520 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,304 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.23 | 24,572 |
| Movies Set in Pennsylvania | 0 | - | 4.17 | 11,367 |
| Famous People from Tennessee by Picture | 0 | - | 4.35 | 26,415 |
| Famous People from Virginia by Picture | 0 | - | 4.22 | 23,676 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 48,756 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,018 |
| Name a Valid U.S. State #2 | 0 | - | 4.62 | 73,797 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 46,704 |
| U.S. State Superlatives #1 | 0 | - | 4.46 | 77,210 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 38,740 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 62,771 |
| Top 10 Least Religious U.S. States | 0 | - | 4.50 | 32,950 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.78 | 61,461 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 40,686 |
| U.S. Geography by Letter - C | 0 | - | 4.21 | 62,719 |
| U.S. Geography by Letter - A | 0 | - | 4.33 | 57,642 |
| U.S. Geography by Letter - D | 0 | - | 4.03 | 46,514 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 45,635 |
| U.S. Geography by Letter - P | 0 | - | 4.32 | 43,652 |
| U.S. Geography by Letter - M | 0 | - | 4.19 | 42,830 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,202 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,088 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 33,335 |
| Cities by Picture #2 | 0 | - | 4.18 | 33,959 |
| Countries Closest to the U. S. | 0 | - | 4.40 | 202,845 |
| Famous People from California by Picture | 0 | - | 4.29 | 34,486 |
| California Groups of Things | 0 | - | 4.24 | 44,384 |
| Hawaiian Islands Map Quiz | 0 | - | 4.75 | 21,823 |
| Movies Set in Boston | 0 | - | 4.14 | 9,537 |
| New York Groups of Things | 0 | - | 4.36 | 58,938 |
| Famous People from Texas by Picture | 0 | - | 4.03 | 32,655 |
| Famous People from Washington State by Picture | 0 | - | 3.78 | 15,502 |
| People on Money - United States | 0 | - | 4.32 | 62,622 |
| U.S. History Groups of Two | 0 | - | 4.22 | 43,281 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.19 | 43,431 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 73,138 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.50 | 21,107 |
| Flyover States | 0 | - | 4.52 | 28,825 |
| U.S. States With Double Letters | 0 | - | 4.65 | 22,713 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.26 | 74,078 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 38,492 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,333 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 124,925 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.48 | 115,898 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 45,015 |
| The Only American Country ... | 0 | - | 4.93 | 115,830 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,427 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 87,178 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.90 | 46,938 |
| Brazil States Map Quiz | 0 | - | 4.84 | 44,191 |
| States of Brazil | 0 | - | 4.97 | 78,361 |
| U.S. State Border Crossings | 0 | - | 4.96 | 86,655 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 231,821 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.06 | 18,910 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 70,917 |
| U.S. States by Picture #1 | 0 | - | 4.17 | 14,925 |
| Most-Visited U.S. Cities | 0 | - | 4.88 | 83,717 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 70,448 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,718 |
| U.S. Electoral College Landslides | 0 | - | 4.33 | 21,583 |
| Geography of California | 0 | - | 4.23 | 10,153 |
| Who Did that Motown Song | 0 | - | 4.46 | 12,881 |
| New York Pro Sport Teams | 0 | - | 4.31 | 25,327 |
| Washington D.C. Landmarks on a Map | 0 | - | 4.60 | 17,797 |
| Events in U.S. History | 0 | - | 4.39 | 27,426 |
| Regions of US States | 0 | - | 4.16 | 32,187 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,099 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,255 |
| Events by U.S. State #2 | 0 | - | 4.27 | 18,257 |
| Movies by State Quiz | 0 | - | 4.24 | 40,014 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 38,024 |
| People by U.S. State - Multiple Choice | 0 | - | 4.06 | 9,638 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 36,854 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.51 | 28,267 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.47 | 25,795 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,136 |
| African-American Historical Figures | 0 | - | 4.18 | 16,765 |
| Capitals of Canadian Provinces | 0 | - | 4.87 | 83,878 |
| Canada Country Quiz | 0 | - | 4.53 | 127,395 |
| Canada Cities Map Quiz | 0 | - | 4.69 | 118,923 |
| Canada A-Z | 0 | - | 4.70 | 31,766 |
| U.S. States With No City Over 100,000 | 0 | - | 4.56 | 16,910 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 86,577 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.89 | 73,480 |
| U.S. Geography by Letter - N | 0 | - | 3.77 | 42,607 |
| U.S. Geography by Letter - E | 0 | - | 3.72 | 38,922 |
| U.S. Geography by Letter - F | 0 | - | 3.78 | 34,883 |
| U.S. Geography by Letter - G | 0 | - | 4.04 | 29,151 |
| U.S. Geography by Letter - R | 0 | - | 4.14 | 27,089 |
| U.S. Geography By Letter - H | 0 | - | 4.31 | 28,503 |
| Mexico Country Quiz | 0 | - | 4.48 | 69,608 |
| Mexico Cities Map Quiz | 0 | - | 4.75 | 32,256 |
