| U.S. Presidents Quiz | 0 | - | 5.00 | 3,667,128 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,518 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,397 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,838 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,387 |
| Random U.S. Presidents by Picture | 0 | - | 4.39 | 65,926 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,056 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,511 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,853 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,414 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,156 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,766 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,213 |
| Presidential Middle Names | 0 | - | 4.41 | 59,843 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,894 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,020 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,235 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,815 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,418 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,631 |
| The Bill Clinton Presidency | 0 | - | 4.22 | 31,380 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,436 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,746 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,943 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,892 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,584 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,541 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,187 |
| First Ladies of the United States | 0 | - | 4.28 | 85,324 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,109 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,141 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,563 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,051 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,861 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,719 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,845 |
| U.S. President Scramble | 0 | - | 4.40 | 116,372 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,066 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,747 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.49 | 28,658 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,545 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,528 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,674 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,543 |
| The John Adams Presidency | 0 | - | 4.12 | 8,694 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,701 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,796 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,288 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,582 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,700 |
| Presidential Actors | 0 | - | 4.36 | 19,097 |
| The George Washington Presidency | 0 | - | 4.03 | 14,491 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,895 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,250 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,626 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 300,527 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,227 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,058 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,109 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,020 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,474 |
| George Bush... or George Bush | 0 | - | 3.98 | 8,184 |
| Random U.S. States on a Map | 0 | - | 4.96 | 622,914 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,465 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,053 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,086 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,384 |
| Harry Potter Last Names | 0 | - | 4.64 | 946,852 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 390,968 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,334 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,479 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,161 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,109 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,437 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,630 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,885 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,057 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,539 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,758 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,137 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,921 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,612 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,686 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 620,943 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 19,973 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,548 |
| The Kennedy Family | 0 | - | 3.90 | 14,036 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,275 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,813 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,626 |
| US States Quiz | 0 | - | 5.00 | 16,750,864 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,811 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,301 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,700 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,778 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,361 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,253 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,270 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,644 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,862 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,895 |
| Pixelated United States Map | 0 | - | 4.89 | 93,701 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,803 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,110 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,684 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,937 |
| American Revolution Decoder | 0 | - | 4.10 | 20,893 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,096 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,030 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,646 |
| The Most Recent... United States | 0 | - | 4.45 | 18,341 |
| The American Civil War | 0 | - | 4.62 | 52,232 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,114 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,306 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,733 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,750 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,112 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,353 |
| U.S. States By Population | 0 | - | 4.92 | 152,644 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,722 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,058 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,924 |
| US States with an Empty Map | 0 | - | 5.00 | 620,483 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,038 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,809 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,906 |
| Draw All US State Borders | 0 | - | 4.99 | 134,632 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,127 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,294 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,223 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,667 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,165 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,802 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,268 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,087 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 66,995 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,108 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,325 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,742 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,012 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.98 | 53,627 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,544 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,268 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,710 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,008 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,685 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,401 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,383 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,866 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,441 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,678 |
| Random African Countries on a Map | 0 | - | 4.99 | 294,319 |
| Rivers of the United States | 0 | - | 4.93 | 65,710 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,686 |
| U.S. Senators by State | 0 | - | 4.45 | 39,813 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,239 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,013 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,996 |
| American Founding Fathers | 0 | - | 4.41 | 23,094 |
| The American Revolution | 0 | - | 4.52 | 54,120 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,633 |
| Stephen Curry Quiz | 0 | - | 4.36 | 66,518 |
| History of Florida | 0 | - | 4.45 | 9,781 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,072 |
| Hawaiian Islands | 0 | - | 4.83 | 42,513 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,646 |
| History of Texas | 0 | - | 4.43 | 14,570 |
| LeBron James Trivia | 0 | - | 4.01 | 170,154 |
| LeBron... or Kobe? | 0 | - | 4.04 | 69,413 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,171 |
| American History Quotes #1 | 0 | - | 4.37 | 95,755 |
| People on Money - United States | 0 | - | 4.31 | 63,238 |
| American History Quotes #2 | 0 | - | 4.38 | 41,254 |
| Old West History | 0 | - | 4.33 | 15,235 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,304 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,780 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,504 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,876 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,663 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,124 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,523,938 |
| U.S. State Flags | 0 | - | 4.89 | 168,196 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,212 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,295 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,167 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,993 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,842 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,103 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,938 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,363 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,645 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,799 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,720 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,421 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,347 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 57,686 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,926 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,384 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,514 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,214 |
