| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,646 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,628 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,359 |
| Vietnam War Countries | 0 | - | 4.83 | 93,542 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 617,581 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,733 |
| U.S. Senators by State | 0 | - | 4.44 | 39,730 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,615 |
| Random U.S. States on a Map | 0 | - | 4.96 | 620,896 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,453 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,058 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,824 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,871 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,808 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,215 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,328 |
| US States Quiz | 0 | - | 5.00 | 16,683,251 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,054 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,318 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,102 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,944 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,713 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,868 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,423 |
| The American Revolution | 0 | - | 4.52 | 54,038 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,613 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,249 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,301 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,519 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,792 |
| U.S. States By Population | 0 | - | 4.92 | 152,278 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,288 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,791 |
| US States with an Empty Map | 0 | - | 5.00 | 618,277 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,463 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,723 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,796 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,191 |
| Presidential Actors | 0 | - | 4.36 | 19,049 |
| U.S. President Scramble | 0 | - | 4.40 | 116,147 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,336 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,479 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,496 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,488 |
| Draw All US State Borders | 0 | - | 4.99 | 133,242 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,964 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,575 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,815 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,044 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,387 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,197 |
| Six Flags Over Texas | 0 | - | 4.79 | 62,981 |
| U.S. State Flags | 0 | - | 4.89 | 166,770 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,139 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,382 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,271 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,349 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,760 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,863 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,381 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,926 |
| Presidential Middle Names | 0 | - | 4.41 | 59,645 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,079 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,679 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,757 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,712 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,146 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,003 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,675 |
| California A-Z | 0 | - | 4.49 | 28,699 |
| California... or Florida? | 0 | - | 4.61 | 50,914 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,516,653 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,210 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,058 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 40,960 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,575 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,220 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,204 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,589 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,237 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,823 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,799 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,874 |
| Name the U.S. National Parks | 0 | - | 4.85 | 58,272 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,197 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,554 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,784 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,051 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,061 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,489 |
| History of Florida | 0 | - | 4.45 | 9,757 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,052 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,982 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,556 |
| History of Texas | 0 | - | 4.43 | 14,547 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,443 |
| New England States | 0 | - | 4.51 | 59,699 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,161 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,432 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,876 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,267 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,663,013 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,600 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,642 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,198 |
| U.S. States by Borders | 0 | - | 4.63 | 35,050 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,309 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,215 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,094 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,033 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,689 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,086 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,612 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,903 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,776 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,621 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,097 |
| Pixelated United States Map | 0 | - | 4.89 | 93,361 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,328 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,747 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,300 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,413 |
| Arms Exports - United States | 0 | - | 4.70 | 54,286 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,366 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,155 |
| First Ladies of the United States | 0 | - | 4.28 | 85,204 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,101 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,193 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 19,956 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,988 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,819 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,241 |
| The Kennedy Family | 0 | - | 3.90 | 14,021 |
| History of California | 0 | - | 4.40 | 18,690 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,172 |
| History of Illinois | 0 | - | 4.24 | 11,171 |
| History of Maryland | 0 | - | 4.06 | 6,646 |
| History of Massachusetts | 0 | - | 4.14 | 8,321 |
| History of Michigan | 0 | - | 4.26 | 6,900 |
| New York City A-Z | 0 | - | 4.18 | 32,176 |
| History of New York | 0 | - | 4.36 | 16,276 |
| History of New Jersey | 0 | - | 4.38 | 7,200 |
| History of Ohio | 0 | - | 4.14 | 7,303 |
| History of Tennessee | 0 | - | 4.29 | 7,628 |
| History of Washington State | 0 | - | 4.27 | 6,835 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,147 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,650 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,309 |
| U.S. States by Clue #1 | 0 | - | 4.52 | 38,543 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,628 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,704 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,358 |
| U.S. States with More Cows than People | 0 | - | 4.63 | 40,420 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,153 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,260 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,013 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 49,730 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,848 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,007 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,247 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.35 | 44,311 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,405 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,067 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,412 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,655 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,550 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,337 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,248 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,455 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,790 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,041 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,412 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,035 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,622 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,000 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,883 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,764 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,673 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,383 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,431 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,772 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,108 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,198 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,150 |
| The Iraq War | 0 | - | 4.47 | 15,540 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,209 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,650 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,344 |
| Rivers of the United States | 0 | - | 4.93 | 65,437 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,335 |
| Mayors of New York City | 0 | - | 3.96 | 12,131 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,351 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,472 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,450 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,022 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,653 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,448 |
| The John Adams Presidency | 0 | - | 4.12 | 8,673 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,678 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,765 |
