| First Names of U.S. Presidents | 0 | - | 4.86 | 383,434 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,723,169 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,297 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,646 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,826 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,597 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,580 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,216 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,906 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,542 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,417 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,258 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,572 |
| Presidential Middle Names | 0 | - | 4.41 | 60,683 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,647 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,875 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,615 |
| Presidents that Beat Thomas Jefferson | 0 | - | 4.49 | 25,076 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,182 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,796 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,167 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,531 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,549 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,888 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,088 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,115 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,542 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,914 |
| U.S. Presidents Who Added the Most Territory | 0 | - | 4.66 | 14,229 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,920 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,355 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,757 |
| First Ladies of the United States | 0 | - | 4.28 | 85,922 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,270 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,305 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,450 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,353 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,087 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 57,812 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,935 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,058 |
| U.S. President Scramble | 0 | - | 4.40 | 117,420 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,329 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,070 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 29,020 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,925 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,830 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,775 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,745 |
| The John Adams Presidency | 0 | - | 4.12 | 8,785 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,772 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,920 |
| The Barack Obama Presidency | 0 | - | 4.14 | 25,498 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,692 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,849 |
| Presidential Actors | 0 | - | 4.36 | 19,242 |
| The George Washington Presidency | 0 | - | 4.03 | 14,603 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,980 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,372 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,752 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,785 |
| Harry Potter Last Names | 0 | - | 4.64 | 951,512 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,297 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,143 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,640 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,953 |
| George Bush... or George Bush | 0 | - | 3.98 | 8,232 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,884 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,969 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,256 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,489 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,113 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 396,989 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 84,126 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,536 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,301 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,845 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,425 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,746 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,306 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,891 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,442 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,219 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,081 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,139 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,076 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,859 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 635,088 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,143 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,642 |
| The Kennedy Family | 0 | - | 3.90 | 14,097 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,925 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,674 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,232 |
| US States Quiz | 0 | - | 5.00 | 16,983,258 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,493 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,264 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,155 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,664 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,762 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,503 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,753 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,647 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,445 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,371 |
| Pixelated United States Map | 0 | - | 4.88 | 94,758 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,448 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,375 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,115 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,557 |
| American Revolution Decoder | 0 | - | 4.12 | 20,989 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,585 |
| Events in U.S. History | 0 | - | 4.41 | 28,808 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,188 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,381 |
| The Most Recent... United States | 0 | - | 4.46 | 18,561 |
| The American Civil War | 0 | - | 4.62 | 52,616 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,994 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,789 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,191 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,212 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,266 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,278 |
| U.S. States By Population | 0 | - | 4.92 | 154,084 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,151 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,848 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,207 |
| US States with an Empty Map | 0 | - | 5.00 | 628,182 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,021 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,810 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,512 |
| Draw All US State Borders | 0 | - | 4.99 | 140,401 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,051 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,618 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,162 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,636 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,797 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,614 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,398 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,990 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,954 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 79,199 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,964 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,083 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,373 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,591 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.98 | 54,609 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,602 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,334 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,820 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,022 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,190 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,457 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,998 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,799 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,149 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,878 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,660 |
| Rivers of the United States | 0 | - | 4.93 | 66,619 |
| Names of Generations | 0 | - | 4.09 | 45,476 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,651 |
| U.S. Senators by State | 0 | - | 4.44 | 40,096 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,783 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,637 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,411 |
| American Founding Fathers | 0 | - | 4.42 | 23,273 |
| The American Revolution | 0 | - | 4.52 | 54,347 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,050 |
| Stephen Curry Quiz | 0 | - | 4.37 | 67,296 |
| History of Florida | 0 | - | 4.45 | 9,872 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,133 |
| Hawaiian Islands | 0 | - | 4.83 | 42,923 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,553 |
| History of Texas | 0 | - | 4.43 | 14,681 |
| LeBron James Trivia | 0 | - | 4.01 | 171,545 |
| LeBron... or Kobe? | 0 | - | 4.04 | 70,433 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,489 |
| American History Quotes #1 | 0 | - | 4.37 | 96,187 |
| People on Money - United States | 0 | - | 4.31 | 63,428 |
| American History Quotes #2 | 0 | - | 4.38 | 41,500 |
| Old West History | 0 | - | 4.34 | 15,296 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,579 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,199 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,534 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,982 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,773 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,328 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,554,248 |
| U.S. State Flags | 0 | - | 4.89 | 172,669 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,501 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,413 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,318 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,483 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,040 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,789 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,407 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,759 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,179 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,408 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,122 |
