| US States Quiz | 0 | - | 5.00 | 16,683,244 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,102 |
| Name the U.S. National Parks | 0 | - | 4.85 | 58,270 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,554 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,051 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,061 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,489 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,556 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,621 |
| Pixelated United States Map | 0 | - | 4.89 | 93,361 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,328 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,747 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,147 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,613 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,249 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,301 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,519 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,792 |
| U.S. States By Population | 0 | - | 4.92 | 152,278 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,288 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,791 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,463 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,723 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,796 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,776 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,300 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,413 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,479 |
| US States with an Empty Map | 0 | - | 5.00 | 618,277 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,000 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,883 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,575 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,815 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,104 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,186 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,496 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,792 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,570 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,964 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,517 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,905 |
| States of Mexico | 0 | - | 4.95 | 173,081 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,698 |
| Geography of California | 0 | - | 4.25 | 10,494 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,235 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,461 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,068 |
| United States Country Quiz | 0 | - | 4.43 | 100,491 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,581 |
| California Groups of Things | 0 | - | 4.25 | 45,253 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,200 |
| New York Groups of Things | 0 | - | 4.38 | 59,916 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,267 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,611 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,508 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,056 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,838 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,707 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,717 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,566 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 15,760 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,016 |
| New England States | 0 | - | 4.51 | 59,699 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,432 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,876 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,267 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,600 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,642 |
| U.S. States by Borders | 0 | - | 4.63 | 35,050 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,215 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,094 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,968 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,802 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,485 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,044 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,222 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,381 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,789 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,373 |
| Flags of North and South America | 0 | - | 4.99 | 365,945 |
| Belize Country Quiz | 0 | - | 4.85 | 20,782 |
| Top U.S. Universities | 0 | - | 4.15 | 143,943 |
| Largest United States Airlines | 0 | - | 4.39 | 54,818 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,097 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,318 |
| U.S. States by Governor | 0 | - | 4.43 | 17,975 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,562 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,532 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 23,940 |
| State Quiz - California | 0 | - | 4.68 | 63,917 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,616 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,743 |
| Hawaiian Islands | 0 | - | 4.83 | 42,410 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,281 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,333 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,246 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,066 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,628 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,358 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,260 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,013 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 49,730 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,405 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,412 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,923 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,655 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,550 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,337 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,248 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,455 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,756 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,389 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,059 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,370 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,382 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,656 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,548 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 112,976 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,221 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,314 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,275 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,276 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 48,962 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,354 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,573 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,324 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,574 |
| U.S. Geography By Letter - H | 0 | - | 4.38 | 39,295 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,349 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,779 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,330 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,918 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,142 |
| American Founding Fathers | 0 | - | 4.41 | 23,064 |
| ALL California Cities | 0 | - | 4.36 | 42,802 |
| Movies Set in Miami | 0 | - | 4.32 | 16,668 |
| People on Money - United States | 0 | - | 4.31 | 63,197 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,220 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,702 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,576 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,455 |
| Flyover States | 0 | - | 4.52 | 29,376 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,891 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,768 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,178 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,957 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,967 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,537 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,296 |
| The Only American Country ... | 0 | - | 4.92 | 120,675 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,277 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,874 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,197 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,784 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,982 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,443 |
| Regions of U.S. States | 0 | - | 4.37 | 43,425 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,335 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,481 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,757 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,190 |
| Movies by State | 0 | - | 4.27 | 40,435 |
| Canada Country Quiz | 0 | - | 4.54 | 131,647 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,564 |
| Canada A-Z | 0 | - | 4.73 | 32,630 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,046 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,052 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,018 |
| U.S. Geography by Letter - N | 0 | - | 3.79 | 52,110 |
| U.S. Geography by Letter - E | 0 | - | 3.73 | 48,170 |
| U.S. Geography by Letter - F | 0 | - | 3.86 | 44,429 |
| U.S. Geography by Letter - O | 0 | - | 3.43 | 33,777 |
| U.S. Geography by Letter - R | 0 | - | 4.15 | 30,242 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,934 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,306 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,813 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,345 |
| States of Brazil | 0 | - | 4.98 | 86,241 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,279 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,380 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,465 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,153 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,151 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,299 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,627 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,647 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,352 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,130 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,347 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,613 |
| Senators Who Ran For President | 0 | - | 4.23 | 16,986 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,065 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,453 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 21,965 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,803 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,731 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,712 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,428 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,647 |
| Cities of Los Angeles County on a Map | 0 | - | 4.69 | 26,699 |
