| U.S. Presidents Quiz | 0 | - | 5.00 | 3,453,921 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 183,588 |
| The American Civil War | 0 | - | 4.61 | 50,853 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 481,986 |
| Countries Closest to United States A-Z | 0 | - | 4.83 | 113,165 |
| Hawaiian Islands | 0 | - | 4.83 | 40,698 |
| U.S. State Flags | 0 | - | 4.89 | 153,801 |
| Which City in Canada? | 0 | - | 4.81 | 55,011 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.95 | 166,648 |
| American History Quotes #1 | 0 | - | 4.41 | 93,958 |
| U.S. History for Dummies | 0 | - | 4.49 | 79,815 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 83,159 |
| U.S. Presidential Trivia #1 | 0 | - | 4.47 | 103,874 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 88,963 |
| U.S. Presidential Trivia #2 | 0 | - | 4.48 | 49,409 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 87,972 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 35,932 |
| U.S. History Groups of Two | 0 | - | 4.22 | 43,305 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.85 | 53,748 |
| Countries that Beat the United States | 0 | - | 4.93 | 158,229 |
| U.S. Presidents Who Died in Office | 0 | - | 4.78 | 33,280 |
| American History Quotes #2 | 0 | - | 4.38 | 40,417 |
| United States Map Quiz | 0 | - | 4.98 | 4,056,707 |
| Win the U.S. Presidential Election | 0 | - | 4.75 | 574,939 |
| The Vietnam War | 0 | - | 4.43 | 34,307 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 411,801 |
| U.S. Vice Presidents | 0 | - | 4.39 | 129,117 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,619 |
| U.S. Presidents by Event | 0 | - | 4.57 | 30,880 |
| First Ladies of the United States | 0 | - | 4.27 | 82,900 |
| Presidential Middle Names | 0 | - | 4.37 | 58,118 |
| The Abraham Lincoln Presidency | 0 | - | 4.51 | 25,613 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 370,002 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 72,758 |
| Random U.S. Vice President to President | 0 | - | 4.43 | 29,629 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 15,196 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,167 |
| Valid Answer - U.S. History | 0 | - | 4.22 | 22,038 |
| U.S. States that Border Canada | 0 | - | 4.91 | 173,001 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,271,436 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 47,837 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,514 |
| U.S. State Border Crossings | 0 | - | 4.96 | 86,716 |
| U.S. Citizenship Test Questions | 0 | - | 4.84 | 231,980 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,290 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 70,996 |
| Rust Belt Cities Map Quiz | 0 | - | 4.56 | 33,859 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 72,935 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 78,177 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.52 | 73,170 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 180,899 |
| Play-Doh Presidents | 0 | - | 5.00 | 79,115 |
| California... or Florida? | 0 | - | 4.60 | 49,227 |
| Georgia Counties | 0 | - | 4.49 | 46,378 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 68,633 |
| New York Counties Quiz | 0 | - | 4.63 | 46,600 |
| Texas Counties | 0 | - | 4.54 | 71,768 |
| North Carolina Counties | 0 | - | 4.52 | 49,504 |
| Counties of Ohio | 0 | - | 4.41 | 43,128 |
| Pennsylvania Counties | 0 | - | 4.47 | 48,110 |
| U.S. States that Border Tennessee | 0 | - | 4.78 | 59,036 |
| West Virginia Counties Quiz | 0 | - | 4.59 | 31,935 |
| People on Money - United States | 0 | - | 4.32 | 62,639 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.19 | 43,467 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 35,401 |
| US States Quiz | 0 | - | 5.00 | 15,888,290 |
| Major U.S. Rivers with State Names | 0 | - | 4.50 | 38,321 |
| Satellite Images - U.S. States | 0 | - | 4.56 | 43,721 |
| Random General Knowledge - U.S. States | 0 | - | 4.45 | 40,638 |
| Cartoon Versions of U.S. States | 0 | - | 4.76 | 61,622 |
| Random Point on Land to US State | 0 | - | 4.54 | 64,883 |
| U.S. States by Nickname | 0 | - | 4.57 | 67,948 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 60,372 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 142,823 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 70,396 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 57,674 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 65,681 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 52,205 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 129,494 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 100,807 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 86,202 |
| Name a Valid African Country | 0 | - | 4.98 | 134,320 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 48,585 |
| U.S. National Parks Quiz | 0 | - | 4.81 | 51,029 |
| Total United States Immigration by Country | 0 | - | 4.89 | 104,605 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 202,277 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 37,944 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 33,285 |
| American Monopoly Board - Map Quiz | 0 | - | 4.48 | 20,712 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 70,653 |
| U.S. Presidential Running Mates | 0 | - | 4.39 | 27,562 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,337 |
| The John Adams Presidency | 0 | - | 4.12 | 8,412 |
| The Theodore Roosevelt Presidency | 0 | - | 4.33 | 7,463 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,300 |
| California Counties Map Quiz | 0 | - | 4.36 | 33,674 |
| Harvard University | 0 | - | 4.15 | 8,083 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.83 | 62,014 |
| Events in U.S. History | 0 | - | 4.39 | 27,453 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 356,185 |
| Smaller U.S. Cities You May Know #1 | 0 | - | 4.44 | 19,205 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 218,153 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 263,538 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 155,949 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 235,947 |
| Name a Valid European Country #2 | 0 | - | 4.92 | 92,398 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 102,032 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 109,949 |
| Asian Last Names in the United States | 0 | - | 4.43 | 45,317 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.89 | 102,054 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 90,169 |
| Name a Valid Asian Country | 0 | - | 4.98 | 115,280 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 84,239 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 78,304 |
| Topological Map of Africa Quiz | 0 | - | 4.83 | 19,655 |
| Which City in Latin America? | 0 | - | 4.64 | 45,989 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,527 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 37,226 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 307,604 |
| Pixelated United States Map | 0 | - | 4.89 | 88,885 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 102,047 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 85,776 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 140,335 |
| Which City in the United States? | 0 | - | 4.21 | 55,509 |
| The George Washington Presidency | 0 | - | 4.03 | 14,153 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,548 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,199 |
| Star-Spangled Banner Quiz | 0 | - | 4.33 | 174,781 |
| American Founding Fathers | 0 | - | 4.37 | 22,706 |
| California Counties | 0 | - | 4.36 | 112,095 |
| Colorado Counties Quiz | 0 | - | 4.41 | 24,384 |
| Florida Counties | 0 | - | 4.36 | 44,812 |
| State Quiz - Hawaii | 0 | - | 4.38 | 62,342 |
| Illinois Counties Quiz | 0 | - | 4.53 | 28,290 |
| Michigan Counties Quiz | 0 | - | 4.61 | 28,135 |
| Las Vegas Casinos Quiz | 0 | - | 4.09 | 37,477 |
| New Jersey Counties | 0 | - | 4.54 | 27,924 |
| Six Flags Over Texas | 0 | - | 4.79 | 61,351 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 25,379 |
| Virginia Counties Quiz | 0 | - | 4.45 | 31,516 |
| Washington Counties | 0 | - | 4.76 | 24,428 |
| Wisconsin Counties Quiz | 0 | - | 4.49 | 24,846 |
| American History A-Z | 0 | - | 4.32 | 17,150 |
| Embarrassing Chapters in US History | 0 | - | 4.19 | 32,442 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 16,960 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 110,516 |
| U.S. States by Clue #1 | 0 | - | 4.52 | 34,109 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.59 | 17,857 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 41,539 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,583 |
| U.S. States with the Letter Y | 0 | - | 4.84 | 105,043 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 107,211 |
| U.S. States with Short Names | 0 | - | 4.90 | 140,880 |
| U.S. States that Start with M | 0 | - | 4.92 | 178,589 |
| U.S. States By Population | 0 | - | 4.90 | 137,272 |
| U.S. States that Start with N | 0 | - | 4.94 | 164,718 |
| U.S. States with Longest Names | 0 | - | 4.86 | 40,747 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 31,343 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 42,386 |
| US States with an Empty Map | 0 | - | 5.00 | 593,743 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 79,149 |
| States in a Tank of the U.S. Map | 0 | - | 4.50 | 29,779 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 83,716 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 61,543 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 61,153 |
| TV Shows by U.S. State | 0 | - | 4.33 | 46,486 |
| U.S. States by Alternate Nicknames | 0 | - | 4.23 | 42,261 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,203 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.48 | 18,803 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 153,909 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 173,730 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 120,413 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.83 | 67,017 |
| Top 10 Newest U.S. States | 0 | - | 4.84 | 83,170 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 96,488 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 78,546 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 63,483 |
| Countries that Beat Canada | 0 | - | 4.90 | 83,779 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 87,994 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 124,867 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 83,585 |
| Which City in Europe? | 0 | - | 4.82 | 103,508 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 159,843 |
| Countries that Beat Russia | 0 | - | 4.84 | 77,776 |
| French Geography Quiz #1 | 0 | - | 4.87 | 33,154 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 97,123 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 43,762 |
| Famous Italian-Americans | 0 | - | 4.17 | 7,541 |
| Countries that Beat Portugal | 0 | - | 4.87 | 55,559 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 94,871 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 230,707 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 13,827 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 65,907 |
| Countries in the Ottoman Empire | 0 | - | 4.88 | 70,201 |
| Countries that Beat Indonesia | 0 | - | 4.85 | 51,856 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 91,922 |
| South America Flags Map Quiz | 0 | - | 4.95 | 80,094 |
| Rivers of the United States | 0 | - | 4.92 | 61,848 |
| American Junk Food Brands #1 | 0 | - | 3.82 | 60,243 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 105,497 |
