| US States Quiz | 0 | - | 5.00 | 16,680,057 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,061 |
| Name the U.S. National Parks | 0 | - | 4.85 | 57,651 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,526 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,028 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 239,985 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,480 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,536 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,543 |
| Pixelated United States Map | 0 | - | 4.89 | 93,315 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,295 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,723 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,129 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,586 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,216 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,279 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,489 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,759 |
| U.S. States By Population | 0 | - | 4.92 | 152,255 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,258 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,774 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,449 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,708 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,784 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,765 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,276 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,390 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,459 |
| US States with an Empty Map | 0 | - | 5.00 | 618,134 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,968 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,871 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,550 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,795 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,097 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,181 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,443 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,784 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,562 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,941 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,511 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,905 |
| States of Mexico | 0 | - | 4.95 | 173,027 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,682 |
| Geography of California | 0 | - | 4.25 | 10,493 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,230 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,457 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,066 |
| United States Country Quiz | 0 | - | 4.43 | 100,475 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,575 |
| California Groups of Things | 0 | - | 4.25 | 45,251 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,199 |
| New York Groups of Things | 0 | - | 4.38 | 59,912 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,239 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,603 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,499 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,052 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,773 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,676 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,707 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,554 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 15,736 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,016 |
| New England States | 0 | - | 4.51 | 59,698 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,418 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,872 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,259 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,595 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,636 |
| U.S. States by Borders | 0 | - | 4.63 | 35,045 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,212 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,087 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,964 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,786 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,484 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,732 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,201 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,371 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,786 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,365 |
| Flags of North and South America | 0 | - | 4.99 | 365,605 |
| Belize Country Quiz | 0 | - | 4.85 | 20,782 |
| Top U.S. Universities | 0 | - | 4.15 | 143,918 |
| Largest United States Airlines | 0 | - | 4.39 | 54,814 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,093 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,313 |
| U.S. States by Governor | 0 | - | 4.43 | 17,971 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,555 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,528 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 23,934 |
| State Quiz - California | 0 | - | 4.68 | 63,913 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,608 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,742 |
| Hawaiian Islands | 0 | - | 4.83 | 42,404 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,278 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,328 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,243 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,063 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,621 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,350 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,259 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,010 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 49,729 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,403 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,398 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,921 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,648 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,547 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,325 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,244 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,453 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,755 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,382 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,054 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,357 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,380 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,653 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,545 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 112,966 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,219 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,305 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,266 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,268 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 48,959 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,346 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,567 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,317 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,568 |
| U.S. Geography By Letter - H | 0 | - | 4.38 | 39,288 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,342 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,778 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,326 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,915 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,137 |
| American Founding Fathers | 0 | - | 4.41 | 23,062 |
| ALL California Cities | 0 | - | 4.36 | 42,798 |
| Movies Set in Miami | 0 | - | 4.32 | 16,668 |
| People on Money - United States | 0 | - | 4.31 | 63,196 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,219 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,699 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,568 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,450 |
| Flyover States | 0 | - | 4.52 | 29,376 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,887 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,765 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,174 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,955 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,959 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,530 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,293 |
| The Only American Country ... | 0 | - | 4.92 | 120,666 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,268 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,845 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,166 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,759 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,969 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,437 |
| Regions of U.S. States | 0 | - | 4.37 | 43,414 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,333 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,478 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,756 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,189 |
| Movies by State | 0 | - | 4.27 | 40,435 |
| Canada Country Quiz | 0 | - | 4.54 | 131,626 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,556 |
| Canada A-Z | 0 | - | 4.73 | 32,627 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,043 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,047 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,005 |
| U.S. Geography by Letter - N | 0 | - | 3.79 | 52,103 |
| U.S. Geography by Letter - E | 0 | - | 3.73 | 48,165 |
| U.S. Geography by Letter - F | 0 | - | 3.86 | 44,424 |
| U.S. Geography by Letter - O | 0 | - | 3.43 | 33,775 |
| U.S. Geography by Letter - R | 0 | - | 4.15 | 30,236 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,924 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,302 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,773 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,316 |
| States of Brazil | 0 | - | 4.98 | 86,224 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,273 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,365 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,443 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,153 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,131 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,298 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,610 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,625 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,350 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,082 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,314 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,582 |
| Senators Who Ran For President | 0 | - | 4.23 | 16,985 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,063 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,451 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 21,962 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,800 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,648,835 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,710 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,425 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,646 |
| Cities of Los Angeles County on a Map | 0 | - | 4.69 | 26,692 |
