| First Names of U.S. Presidents | 0 | - | 4.86 | 382,470 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,733 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,711,070 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,254 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,524 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,547 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,558 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,252 |
| U.S. President Scramble | 0 | - | 4.40 | 117,158 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,985 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,785 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,102 |
| Presidential Middle Names | 0 | - | 4.41 | 60,461 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,480 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,688 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,501 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,964 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,812 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,216 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,166 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,073 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,911 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,795 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,987 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,236 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,746 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,569 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,292 |
| First Ladies of the United States | 0 | - | 4.28 | 85,775 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,253 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,295 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,776 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,249 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,010 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,664 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,865 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,488 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,518 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,852 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,053 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,374 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,434 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,104 |
| Presidential Actors | 0 | - | 4.36 | 19,204 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,686 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,753 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,677 |
| The John Adams Presidency | 0 | - | 4.12 | 8,764 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,751 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,964 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,873 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,327 |
| U.S. Senators by State | 0 | - | 4.44 | 40,016 |
| The George Washington Presidency | 0 | - | 4.03 | 14,571 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,952 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,338 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,714 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,084 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,276 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,534 |
| George Bush... or George Bush | 0 | - | 3.98 | 8,220 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,501 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,829 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,240 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,600 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,763 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,053 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,900 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 395,460 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,277 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,002 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,646 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,164 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,819 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,953 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,654 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,969 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,076 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,506 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,113 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,963 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,834 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 630,756 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,123 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,618 |
| The Kennedy Family | 0 | - | 3.90 | 14,084 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,478 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,451 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,069 |
| US States Quiz | 0 | - | 5.00 | 16,929,836 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,911 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,832 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,819 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,199 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,407 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,213 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,342 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,113 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,148 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,261 |
| Pixelated United States Map | 0 | - | 4.88 | 94,507 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,025 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,056 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,763 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,922 |
| American Revolution Decoder | 0 | - | 4.10 | 20,973 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,473 |
| Events in U.S. History | 0 | - | 4.41 | 28,727 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,143 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,225 |
| The Most Recent... United States | 0 | - | 4.46 | 18,512 |
| The American Civil War | 0 | - | 4.62 | 52,512 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,663 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,180 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,181 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,784 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,721 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,408 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,733 |
| U.S. States By Population | 0 | - | 4.92 | 153,799 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,788 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,623 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,901 |
| US States with an Empty Map | 0 | - | 5.00 | 626,368 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,734 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,566 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,352 |
| Draw All US State Borders | 0 | - | 4.99 | 139,019 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,828 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,331 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,976 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,445 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,695 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,470 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,990 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,636 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,765 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 78,829 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,474 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,600 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,717 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,170 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.98 | 54,388 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,349 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,122 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,565 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,793 |
| Monty Python Quotes | 0 | - | 4.89 | 42,518 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 379,213 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,793 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,913 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,160 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,830 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,612 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,988 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,563 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,458 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,833 |
| Rivers of the United States | 0 | - | 4.93 | 66,387 |
| Names of Generations | 0 | - | 4.09 | 45,251 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,398 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,642 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,477 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,308 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,740 |
| American Founding Fathers | 0 | - | 4.42 | 23,247 |
| The American Revolution | 0 | - | 4.52 | 54,296 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,668 |
| Stephen Curry Quiz | 0 | - | 4.37 | 67,121 |
| History of Florida | 0 | - | 4.45 | 9,846 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,118 |
| Hawaiian Islands | 0 | - | 4.83 | 42,793 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,303 |
| History of Texas | 0 | - | 4.43 | 14,660 |
| LeBron James Trivia | 0 | - | 4.01 | 171,245 |
| LeBron... or Kobe? | 0 | - | 4.04 | 70,215 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,402 |
| American History Quotes #1 | 0 | - | 4.37 | 96,120 |
| People on Money - United States | 0 | - | 4.31 | 63,383 |
| American History Quotes #2 | 0 | - | 4.38 | 41,457 |
| Old West History | 0 | - | 4.34 | 15,288 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,521 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,142 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,960 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,287 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,546,643 |
| U.S. State Flags | 0 | - | 4.89 | 171,491 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,721 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,595 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,575 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,736 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,713 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,381 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,028 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,401 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,038 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,271 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,802 |
