| U.S. Presidents by Picture | 0 | - | 4.86 | 415,927 |
| Play-Doh Presidents | 0 | - | 5.00 | 80,097 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 184,277 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 42,873 |
| Presidential Actors | 0 | - | 4.34 | 18,790 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.41 | 297,693 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 189,162 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 67,496 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.47 | 22,547 |
| People in Pictures with Barack Obama | 0 | - | 4.09 | 47,111 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,531,689 |
| The George W. Bush Presidency | 0 | - | 4.06 | 31,798 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 373,530 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.53 | 27,842 |
| U.S. President Scramble | 0 | - | 4.39 | 113,663 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,485 |
| U.S. Senators by State | 0 | - | 4.45 | 38,908 |
| The Barack Obama Presidency | 0 | - | 4.16 | 24,853 |
| Random U.S. States on a Map | 0 | - | 4.96 | 603,176 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,653 |
| The Jimmy Carter Presidency | 0 | - | 4.40 | 18,764 |
| The American Revolution | 0 | - | 4.52 | 53,520 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 185,553 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 126,913 |
| Vietnam War Countries | 0 | - | 4.81 | 91,386 |
| U.S. Presidential Quotes | 0 | - | 4.36 | 43,950 |
| United States Map Quiz | 0 | - | 4.98 | 4,090,428 |
| U.S. Presidents by State | 0 | - | 4.34 | 67,909 |
| George Bush... or George Bush | 0 | - | 3.98 | 8,069 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 17,886 |
| The Iraq War | 0 | - | 4.46 | 15,246 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 112,315 |
| U.S. Presidential Trivia #1 | 0 | - | 4.47 | 105,438 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 90,679 |
| The Bill Clinton Presidency | 0 | - | 4.22 | 31,069 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,214 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,456 |
| U.S. Presidential Trivia #2 | 0 | - | 4.48 | 50,780 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 90,409 |
| U.S. Presidents Who Died in Office | 0 | - | 4.78 | 33,895 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 36,959 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.58 | 9,364 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 62,942 |
| Countries of the Soviet Union | 0 | - | 4.98 | 191,370 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 78,674 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 102,583 |
| U.S. State Border Crossings | 0 | - | 4.96 | 87,896 |
| U.S. National Parks Quiz | 0 | - | 4.83 | 52,466 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 234,471 |
| Total United States Immigration by Country | 0 | - | 4.90 | 106,908 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 72,417 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 169,268 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 229,923 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 71,350 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.18 | 32,634 |
| Random U.S. Presidents by Picture | 0 | - | 4.37 | 64,566 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 70,553 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.83 | 63,199 |
| US States Quiz | 0 | - | 5.00 | 16,198,289 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 359,734 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 145,182 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 72,241 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 59,802 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 67,274 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 53,705 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 111,409 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 112,146 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 85,668 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 79,194 |
| 10 Longest Rivers in the United States | 0 | - | 4.84 | 37,872 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 316,044 |
| Pixelated United States Map | 0 | - | 4.90 | 90,370 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 104,442 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 87,817 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 142,299 |
| Countries that Beat the United States | 0 | - | 4.93 | 160,738 |
| All U.S. Supreme Court Justices | 0 | - | 4.52 | 28,447 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.45 | 11,320 |
| Win the U.S. Presidential Election | 0 | - | 4.74 | 591,919 |
| U.S. Vice Presidents | 0 | - | 4.40 | 131,361 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,856 |
| U.S. Presidents by Event | 0 | - | 4.58 | 31,331 |
| First Ladies of the United States | 0 | - | 4.28 | 83,619 |
| Presidential Middle Names | 0 | - | 4.40 | 58,655 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 25,812 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 74,197 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.71 | 19,805 |
| Random U.S. Vice President to President | 0 | - | 4.43 | 30,010 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 15,497 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,436 |
| The Kennedy Family | 0 | - | 3.90 | 13,844 |
| California A-Z | 0 | - | 4.49 | 28,505 |
| Six Flags Over Texas | 0 | - | 4.79 | 61,919 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 26,164 |
| U.S. History for Dummies | 0 | - | 4.47 | 80,819 |
| The American Civil War | 0 | - | 4.61 | 51,331 |
| U.S. Civil War Decoder | 0 | - | 4.18 | 24,911 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 113,232 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 487,981 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 107,129 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 109,238 |
| U.S. States with Short Names | 0 | - | 4.90 | 143,682 |
| U.S. States that Start with M | 0 | - | 4.93 | 181,449 |
| U.S. States By Population | 0 | - | 4.90 | 138,849 |
| U.S. States that Start with N | 0 | - | 4.95 | 166,645 |
| U.S. States with Longest Names | 0 | - | 4.87 | 41,935 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 44,484 |
| US States with an Empty Map | 0 | - | 5.00 | 603,347 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 80,226 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 229,509 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 85,132 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 62,250 |
| Draw All US State Borders | 0 | - | 4.99 | 122,638 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 62,851 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 155,964 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 175,071 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 121,849 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.84 | 67,833 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 84,137 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 98,220 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 79,768 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.83 | 64,786 |
| Shortest U.S. Presidential Terms | 0 | - | 4.80 | 11,483 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 90,285 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 127,644 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 161,632 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 99,061 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 57,850 |
| Countries of Iberia in History with a Map | 0 | - | 4.89 | 39,328 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 82,957 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 95,912 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 232,729 |
| Vatican City Country Quiz | 0 | - | 4.51 | 42,855 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 67,118 |
| The Persian Gulf War | 0 | - | 4.02 | 8,216 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 71,056 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 92,826 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.84 | 52,626 |
| Most Guessed North American Teams by Sport | 0 | - | 4.27 | 61,885 |
| Rivers of the United States | 0 | - | 4.92 | 63,212 |
| Countries Closest to United States A-Z | 0 | - | 4.83 | 114,535 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 73,778 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 79,256 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 73,799 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 27,927 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,467 |
| People in Pictures with Ronald Reagan | 0 | - | 4.34 | 39,834 |
| The John Adams Presidency | 0 | - | 4.12 | 8,512 |
| The Theodore Roosevelt Presidency | 0 | - | 4.33 | 7,561 |
| U.S. Vice Presidential Trivia | 0 | - | 4.27 | 12,529 |
| Countries Closest to Alaska | 0 | - | 4.91 | 106,986 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.23 | 45,143 |
| History of Florida | 0 | - | 4.45 | 9,585 |
| Hawaiian Islands | 0 | - | 4.83 | 41,398 |
| Countries Closest to Maine | 0 | - | 4.83 | 64,250 |
| History of Texas | 0 | - | 4.43 | 14,333 |
| U.S. States that Border Tennessee | 0 | - | 4.81 | 64,083 |
| American History Quotes #1 | 0 | - | 4.38 | 94,471 |
| People on Money - United States | 0 | - | 4.32 | 62,881 |
| American History Quotes #2 | 0 | - | 4.38 | 40,664 |
| U.S. History Groups of Two | 0 | - | 4.23 | 43,656 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 43,974 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,649 |
| U.S. History Multiple Choice #3 | 0 | - | 4.42 | 24,349 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 35,635 |
| U.S. State Flags | 0 | - | 4.88 | 158,665 |
| U.S. States that Border Canada | 0 | - | 4.91 | 175,062 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 201,435 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 45,876 |
| Top 10 Coldest U.S. States | 0 | - | 4.93 | 120,457 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 121,061 |
| Top 10 Most Native American U.S. States | 0 | - | 4.85 | 88,042 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.81 | 60,403 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 56,223 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 157,469 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 55,979 |
| Biggest Roman Empire Countries | 0 | - | 4.89 | 99,718 |
| Ultimate Harry Potter Name Game | 0 | - | 4.95 | 481,479 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 79,221 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 52,648 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 124,354 |
| Random American Countries on a Map | 0 | - | 4.96 | 95,156 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 207,882 |
| Territories of the United States | 0 | - | 4.78 | 51,297 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 38,180 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 170,848 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.36 | 8,217 |
| Major non-NATO U.S. Allies | 0 | - | 4.50 | 50,235 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 91,742 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,100 |
| Three Real and One Fake - U.S. History | 0 | - | 4.32 | 25,400 |
| The George Washington Presidency | 0 | - | 4.03 | 14,261 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,675 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,366 |
| American Founding Fathers | 0 | - | 4.40 | 22,831 |
| Golden State Warriors Trivia | 0 | - | 4.23 | 23,966 |
| Los Angeles Lakers Trivia | 0 | - | 4.11 | 25,393 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 10,901 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 4.08 | 11,600 |
| Top 10 Boston Celtics Players | 0 | - | 4.10 | 22,836 |
