| First Names of U.S. Presidents | 0 | - | 4.86 | 381,404 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,694,715 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,267 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,647 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,237 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,492 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,208 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,127 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,663 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,529 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,648 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,397 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,733 |
| Presidential Middle Names | 0 | - | 4.41 | 60,190 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,284 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,549 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,399 |
| Presidents that Beat Thomas Jefferson | 0 | - | 4.49 | 24,936 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,968 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,557 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,316 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,449 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,491 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,816 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,013 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,853 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,956 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,715 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,197 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,252 |
| First Ladies of the United States | 0 | - | 4.28 | 85,606 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,184 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,217 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,040 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,185 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,953 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,817 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,947 |
| U.S. President Scramble | 0 | - | 4.40 | 116,727 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,173 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,871 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,822 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,559 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,668 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,626 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,724 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,642 |
| The John Adams Presidency | 0 | - | 4.12 | 8,743 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,742 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,848 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,390 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,694 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,763 |
| Presidential Actors | 0 | - | 4.36 | 19,164 |
| The George Washington Presidency | 0 | - | 4.03 | 14,541 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,931 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,318 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,671 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 302,309 |
| Harry Potter Last Names | 0 | - | 4.64 | 949,107 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,264 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,745 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,336 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,490 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,703 |
| George Bush... or George Bush | 0 | - | 3.98 | 8,203 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,984 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,113 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,037 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,537 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,695 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 393,740 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,675 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,984 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,785 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,442 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,893 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,357 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,544 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,418 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,377 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,751 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,663 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,069 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,842 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,788 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 626,840 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,050 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,596 |
| The Kennedy Family | 0 | - | 3.90 | 14,069 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,927 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,178 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,892 |
| US States Quiz | 0 | - | 5.00 | 16,860,121 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,872 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,112 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 80,913 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,543 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,898 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,779 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,909 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,488 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,218 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,147 |
| Pixelated United States Map | 0 | - | 4.87 | 94,205 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,559 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,688 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,334 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,097 |
| American Revolution Decoder | 0 | - | 4.10 | 20,951 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,336 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,105 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,013 |
| The Most Recent... United States | 0 | - | 4.45 | 18,431 |
| The American Civil War | 0 | - | 4.62 | 52,407 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,782 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,174 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,322 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,346 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,886 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,167 |
| U.S. States By Population | 0 | - | 4.92 | 153,487 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,352 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,401 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,524 |
| US States with an Empty Map | 0 | - | 5.00 | 624,112 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,460 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,239 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,179 |
| Draw All US State Borders | 0 | - | 4.99 | 137,236 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,569 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,889 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,656 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,144 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,473 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,173 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,694 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,432 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,461 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 78,426 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,931 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,090 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,317 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,683 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.98 | 54,071 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,061 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,779 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,226 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,491 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,323 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,838 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,630 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,203 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,766 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,221 |
| Random African Countries on a Map | 0 | - | 4.99 | 295,725 |
| Rivers of the United States | 0 | - | 4.93 | 66,146 |
| Names of Generations | 0 | - | 4.09 | 44,751 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,093 |
| U.S. Senators by State | 0 | - | 4.45 | 39,940 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,488 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,294 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,172 |
| American Founding Fathers | 0 | - | 4.42 | 23,220 |
| The American Revolution | 0 | - | 4.52 | 54,237 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,249 |
| Stephen Curry Quiz | 0 | - | 4.37 | 66,899 |
| History of Florida | 0 | - | 4.45 | 9,823 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,101 |
| Hawaiian Islands | 0 | - | 4.83 | 42,688 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,065 |
| History of Texas | 0 | - | 4.43 | 14,620 |
| LeBron James Trivia | 0 | - | 4.01 | 170,833 |
| LeBron... or Kobe? | 0 | - | 4.04 | 69,892 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,299 |
| American History Quotes #1 | 0 | - | 4.37 | 96,004 |
| People on Money - United States | 0 | - | 4.31 | 63,340 |
| American History Quotes #2 | 0 | - | 4.38 | 41,392 |
| Old West History | 0 | - | 4.34 | 15,271 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,437 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,033 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,518 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,922 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,722 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,228 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,537,065 |
| U.S. State Flags | 0 | - | 4.89 | 170,177 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,710 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,722 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,639 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,082 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,369 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,601 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,560 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,932 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,870 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,086 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,721 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,406 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,346 |
