| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,632 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,623 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,316 |
| Vietnam War Countries | 0 | - | 4.83 | 93,540 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 617,504 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,378 |
| U.S. Senators by State | 0 | - | 4.44 | 39,725 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,610 |
| Random U.S. States on a Map | 0 | - | 4.96 | 620,858 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,449 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,055 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,818 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,870 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,807 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,199 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,324 |
| US States Quiz | 0 | - | 5.00 | 16,682,008 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,035 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,311 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,079 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,936 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,709 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,415 |
| The American Revolution | 0 | - | 4.52 | 54,037 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,606 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,238 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,296 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,508 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,783 |
| U.S. States By Population | 0 | - | 4.92 | 152,264 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,274 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,785 |
| US States with an Empty Map | 0 | - | 5.00 | 618,237 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,460 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,720 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,792 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,188 |
| Presidential Actors | 0 | - | 4.36 | 19,049 |
| U.S. President Scramble | 0 | - | 4.40 | 116,145 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,293 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,470 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,478 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,476 |
| Draw All US State Borders | 0 | - | 4.99 | 133,209 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,955 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,564 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,807 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,917 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,371 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,197 |
| Six Flags Over Texas | 0 | - | 4.79 | 62,979 |
| U.S. State Flags | 0 | - | 4.89 | 166,745 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,064 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,377 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,269 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,345 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,866 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,751 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,855 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,373 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,918 |
| Presidential Middle Names | 0 | - | 4.41 | 59,642 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,079 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,678 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,750 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,709 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,145 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,000 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,672 |
| California A-Z | 0 | - | 4.49 | 28,698 |
| California... or Florida? | 0 | - | 4.61 | 50,913 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,516,491 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,208 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,058 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 40,959 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,571 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,217 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,195 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,581 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,225 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,822 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,795 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,865 |
| Name the U.S. National Parks | 0 | - | 4.85 | 58,048 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,188 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,542 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,771 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,040 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,025 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,482 |
| 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 | 72,975 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,546 |
| History of Texas | 0 | - | 4.43 | 14,547 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,441 |
| New England States | 0 | - | 4.51 | 59,698 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,100 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,430 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,875 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,264 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,662,817 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,599 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,640 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,198 |
| U.S. States by Borders | 0 | - | 4.63 | 35,049 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,287 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,215 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,092 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,020 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,684 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,083 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,610 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,896 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,773 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,594 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,095 |
| Pixelated United States Map | 0 | - | 4.89 | 93,349 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,313 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,734 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,289 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,401 |
| Arms Exports - United States | 0 | - | 4.70 | 54,276 |
| 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 | 85,198 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,101 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,188 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 19,955 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,987 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,818 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,241 |
| The Kennedy Family | 0 | - | 3.90 | 14,021 |
| History of California | 0 | - | 4.40 | 18,689 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,171 |
| History of Illinois | 0 | - | 4.24 | 11,171 |
| History of Maryland | 0 | - | 4.06 | 6,646 |
| History of Massachusetts | 0 | - | 4.14 | 8,320 |
| 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 | 16,275 |
| History of New Jersey | 0 | - | 4.38 | 7,200 |
| History of Ohio | 0 | - | 4.14 | 7,302 |
| History of Tennessee | 0 | - | 4.29 | 7,628 |
| History of Washington State | 0 | - | 4.27 | 6,835 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,137 |
| 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 | 38,535 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,626 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,703 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,355 |
| U.S. States with More Cows than People | 0 | - | 4.63 | 40,418 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,152 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,259 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,012 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 49,729 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,844 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,006 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,243 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.35 | 44,308 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,404 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,058 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,407 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,655 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,549 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,334 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,247 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,454 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,785 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,036 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,404 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,031 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,620 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,988 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,878 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,756 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,673 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,377 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,416 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,764 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,098 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,165 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,143 |
| The Iraq War | 0 | - | 4.47 | 15,540 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,208 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,643 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,338 |
| Rivers of the United States | 0 | - | 4.93 | 65,433 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,326 |
| Mayors of New York City | 0 | - | 3.96 | 12,130 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,350 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,471 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,449 |
| 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 | 30,439 |
| 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 |
