| U.S. Presidents Quiz | 0 | - | 5.00 | 3,648,715 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,127 |
| The American Civil War | 0 | - | 4.62 | 52,099 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,215 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,316 |
| Hawaiian Islands | 0 | - | 4.83 | 42,402 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,061 |
| U.S. State Flags | 0 | - | 4.89 | 166,701 |
| Which City in Canada? | 0 | - | 4.82 | 56,606 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,024 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,405 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,921 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,736 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,841 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,352 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,909 |
| Presidential Middle Names | 0 | - | 4.41 | 59,633 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,662 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,738 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,144 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,219 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,565 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,389 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,706 |
| American History Quotes #1 | 0 | - | 4.37 | 95,657 |
| American History Quotes #2 | 0 | - | 4.38 | 41,214 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,700 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 617,415 |
| The Vietnam War | 0 | - | 4.43 | 35,276 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,257 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,155 |
| First Ladies of the United States | 0 | - | 4.28 | 85,195 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,099 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,342 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,180 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,983 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,817 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,432 |
| U.S. States that Border Canada | 0 | - | 4.91 | 181,922 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,671 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,599 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,971 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,263 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,841 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,161 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,342 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,757 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,865 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,050 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,804 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,865 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,601 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,599 |
| American Founding Fathers | 0 | - | 4.41 | 23,062 |
| California... or Florida? | 0 | - | 4.61 | 50,903 |
| Georgia Counties | 0 | - | 4.50 | 49,027 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,967 |
| New York Counties | 0 | - | 4.64 | 49,835 |
| Texas Counties | 0 | - | 4.55 | 75,975 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,434 |
| North Carolina Counties | 0 | - | 4.53 | 52,648 |
| Ohio Counties | 0 | - | 4.47 | 45,326 |
| Pennsylvania Counties | 0 | - | 4.48 | 52,026 |
| Virginia Counties | 0 | - | 4.45 | 32,891 |
| West Virginia Counties | 0 | - | 4.61 | 33,488 |
| People on Money - United States | 0 | - | 4.31 | 63,196 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,699 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,062 |
| US States Quiz | 0 | - | 5.00 | 16,679,633 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,329 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 44,884 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,206 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,725 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 63,487 |
| Random Point on Land to US State | 0 | - | 4.57 | 68,451 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,251 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,175 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,774 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,297 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,242 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 69,993 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,910 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,251 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,712 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,975 |
| Name a Valid African Country | 0 | - | 4.98 | 152,815 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,230 |
| Name the U.S. National Parks | 0 | - | 4.85 | 57,564 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,519 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 239,967 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,535 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,897 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,044 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,125 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,665 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,479 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,445 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,653 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,429 |
| The John Adams Presidency | 0 | - | 4.12 | 8,673 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,678 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,763 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,322 |
| Harvard University | 0 | - | 4.15 | 8,258 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,534 |
| Events in U.S. History | 0 | - | 4.40 | 28,449 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,057 |
| Smaller U.S. Cities You May Know #1 | 0 | - | 4.45 | 19,604 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,222 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,974 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,909 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,286 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,036 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,673 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,108 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,484 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,557 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,440 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,936 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,606 |
| Which City in Latin America? | 0 | - | 4.63 | 46,821 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,930 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,764 |
| Pixelated United States Map | 0 | - | 4.89 | 93,310 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,291 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,717 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,275 |
| Which City in the United States? | 0 | - | 4.21 | 56,628 |
| 75 Americans Named John | 0 | - | 4.41 | 23,818 |
| The George Washington Presidency | 0 | - | 4.03 | 14,469 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,861 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,602 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 178,430 |
| California Counties | 0 | - | 4.39 | 117,991 |
| Colorado Counties | 0 | - | 4.44 | 26,294 |
| Florida Counties | 0 | - | 4.39 | 48,060 |
| State Quiz - Hawaii | 0 | - | 4.35 | 64,886 |
| Illinois Counties | 0 | - | 4.56 | 30,022 |
| Indiana Counties | 0 | - | 4.46 | 28,592 |
| Michigan Counties | 0 | - | 4.63 | 30,007 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,724 |
| Las Vegas Casinos | 0 | - | 4.12 | 37,953 |
| New Jersey Counties | 0 | - | 4.56 | 29,895 |
| Six Flags Over Texas | 0 | - | 4.79 | 62,971 |
| Washington Counties | 0 | - | 4.78 | 26,505 |
| Wisconsin Counties | 0 | - | 4.51 | 26,498 |
| U.S. History A-Z #1 | 0 | - | 4.39 | 29,170 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,977 |
| Animals in American History | 0 | - | 4.20 | 27,901 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,486 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,583 |
| U.S. States by Clue #1 | 0 | - | 4.52 | 38,527 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,172 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,696 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,839 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,208 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,274 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,486 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,756 |
| U.S. States By Population | 0 | - | 4.92 | 152,254 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,257 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,774 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,451 |
| US States with an Empty Map | 0 | - | 5.00 | 618,121 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,838 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 30,996 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,448 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,706 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,783 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,274 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,798 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,896 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.46 | 19,187 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,775 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,031 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,397 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,025 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,611 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,965 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,867 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,740 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,782 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,542 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,793 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,855 |
| Which City in Europe? | 0 | - | 4.83 | 106,549 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,360 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,776 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,489 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,411 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,539 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,391 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,286 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,595 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,749 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,080 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,191 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,845 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,135 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,201 |
