| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,711 |
| US States Quiz | 0 | - | 5.00 | 16,992,431 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,625 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,464 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,384 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,526 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,413 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,093 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,312 |
| Pixelated United States Map | 0 | - | 4.88 | 94,800 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,526 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,430 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,758 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,062 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,260 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,287 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,328 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,345 |
| U.S. States By Population | 0 | - | 4.92 | 154,124 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,208 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,878 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,855 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,533 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,082 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,388 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,203 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,638 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,278 |
| US States with an Empty Map | 0 | - | 5.00 | 628,566 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,449 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,019 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,095 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,192 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,703 |
| California Groups of Things | 0 | - | 4.26 | 45,767 |
| Los Angeles vs. New York | 0 | - | 4.41 | 20,028 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,533 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,504 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,835 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,464 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,815 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,192 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,303 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,250 |
| States of Mexico | 0 | - | 4.96 | 178,201 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,594 |
| Geography of California | 0 | - | 4.26 | 10,627 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,713 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,908 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,150 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,811 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,730 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,674 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,279 |
| United States Country Quiz | 0 | - | 4.43 | 102,175 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,062 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,319 |
| New York Groups of Things | 0 | - | 4.39 | 72,052 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,613 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,471 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,196 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,027 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 69,895 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,581 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,713 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,497 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,143 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,958 |
| New England States | 0 | - | 4.51 | 59,893 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,053 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,117 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,137 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,278 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,138 |
| U.S. States by Borders | 0 | - | 4.62 | 35,474 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,679 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,332 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,445 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,961 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,026 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,116 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,584 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,960 |
| 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 | 7,758 |
| Flags of North and South America | 0 | - | 4.99 | 376,851 |
| Belize Country Quiz | 0 | - | 4.85 | 21,083 |
| Top U.S. Universities | 0 | - | 4.15 | 145,800 |
| Largest United States Airlines | 0 | - | 4.39 | 55,157 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,984 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,873 |
| U.S. States by Governor | 0 | - | 4.43 | 18,111 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,764 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,776 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,129 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,225 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,178 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,917 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,655 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,500 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,606 |
| Famous Missourians | 0 | - | 4.12 | 6,434 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,350 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,461 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,744 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,522 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,579 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,467 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,499 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,279 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,860 |
| Events in U.S. History | 0 | - | 4.41 | 28,820 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,135 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,072 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,642 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 59,527 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,807 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,562 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,385 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,118 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,290 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,942 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,121 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,682 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,760 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,977 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,996 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,438 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,030 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,570 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,834 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,815 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,205 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,369 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,487 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,520 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,496 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,202 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,396 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,614 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,517 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,687 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,858 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,595 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,974 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,020 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,724 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,289 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,470 |
| 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 | 9,798 |
| New York City Geography | 0 | - | 4.43 | 33,186 |
| People on Money - United States | 0 | - | 4.31 | 63,432 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,581 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,218 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,056 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,567 |
| Flyover States | 0 | - | 4.53 | 29,592 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,262 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,400 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,460 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,183 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,970 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,330 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,675 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,708 |
| The Only American Country ... | 0 | - | 4.92 | 122,205 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,652 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,880 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,810 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,927 |
| Names of Generations | 0 | - | 4.09 | 45,507 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,985 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,074 |
| Regions of U.S. States | 0 | - | 4.37 | 44,175 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,421 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,632 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,934 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,366 |
| Movies by State | 0 | - | 4.27 | 40,605 |
| Canada Country Quiz | 0 | - | 4.55 | 133,029 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,601 |
| Canada A-Z | 0 | - | 4.73 | 32,967 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,602 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,032 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,823 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,060 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,075 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,342 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,802 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,742 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,796 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,559 |
| States of Brazil | 0 | - | 4.97 | 89,672 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,995 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,016 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,901 |
