| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,705 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,646 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,462 |
| Vietnam War Countries | 0 | - | 4.83 | 93,569 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 617,974 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,651,302 |
| U.S. Senators by State | 0 | - | 4.44 | 39,738 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,639 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,104 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,466 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,074 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,842 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,882 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,809 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,286 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,360 |
| US States Quiz | 0 | - | 5.00 | 16,689,443 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,256 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,372 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,159 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,981 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,761 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,876 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,463 |
| The American Revolution | 0 | - | 4.52 | 54,042 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,654 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,296 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,344 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,566 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,831 |
| U.S. States By Population | 0 | - | 4.92 | 152,300 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,323 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,819 |
| US States with an Empty Map | 0 | - | 5.00 | 618,454 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,497 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,733 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,832 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,202 |
| Presidential Actors | 0 | - | 4.36 | 19,051 |
| U.S. President Scramble | 0 | - | 4.40 | 116,164 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,516 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,507 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,559 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,514 |
| Draw All US State Borders | 0 | - | 4.99 | 133,349 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,982 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,627 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,850 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,649 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,444 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,203 |
| Six Flags Over Texas | 0 | - | 4.79 | 62,989 |
| U.S. State Flags | 0 | - | 4.89 | 166,879 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,296 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,410 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,280 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,363 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,839 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,895 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,411 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,953 |
| Presidential Middle Names | 0 | - | 4.41 | 59,662 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,081 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,698 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,773 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,721 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,151 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,012 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,685 |
| California A-Z | 0 | - | 4.49 | 28,701 |
| California... or Florida? | 0 | - | 4.61 | 50,929 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,517,247 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,227 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,064 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 40,962 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,587 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,229 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,256 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,629 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,281 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,836 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,822 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,907 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,593 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,250 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,598 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,819 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,090 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,436 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,503 |
| History of Florida | 0 | - | 4.45 | 9,759 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,053 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,012 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,573 |
| History of Texas | 0 | - | 4.43 | 14,547 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,464 |
| New England States | 0 | - | 4.51 | 59,701 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,456 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,455 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,879 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,291 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,663,616 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,607 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,650 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,199 |
| U.S. States by Borders | 0 | - | 4.63 | 35,055 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,364 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,220 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,107 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,089 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,710 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,142 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,633 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,924 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,786 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,731 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 37,148 |
| Pixelated United States Map | 0 | - | 4.89 | 93,417 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,377 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,795 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,341 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,472 |
| Arms Exports - United States | 0 | - | 4.70 | 54,303 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,369 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,160 |
| First Ladies of the United States | 0 | - | 4.28 | 85,219 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,103 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,221 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 19,957 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,993 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,823 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,244 |
| The Kennedy Family | 0 | - | 3.90 | 14,021 |
| History of California | 0 | - | 4.40 | 18,691 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,176 |
| History of Illinois | 0 | - | 4.24 | 11,174 |
| History of Maryland | 0 | - | 4.06 | 6,648 |
| History of Massachusetts | 0 | - | 4.14 | 8,323 |
| History of Michigan | 0 | - | 4.26 | 6,902 |
| New York City A-Z | 0 | - | 4.18 | 32,185 |
| History of New York | 0 | - | 4.36 | 16,278 |
| History of New Jersey | 0 | - | 4.38 | 7,203 |
| History of Ohio | 0 | - | 4.14 | 7,306 |
| History of Tennessee | 0 | - | 4.29 | 7,629 |
| History of Washington State | 0 | - | 4.27 | 6,836 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,184 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,654 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,312 |
| U.S. States by Clue #1 | 0 | - | 4.53 | 38,565 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,640 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,717 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,379 |
| U.S. States with More Cows than People | 0 | - | 4.63 | 40,425 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,162 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,266 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,017 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.45 | 49,995 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,865 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,017 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,262 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.35 | 44,316 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,406 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,107 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,429 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,664 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,560 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,353 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,256 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,461 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,821 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,050 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,441 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,045 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,636 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,031 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,903 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,790 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,677 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,420 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,464 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,797 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,136 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,389 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,168 |
| The Iraq War | 0 | - | 4.47 | 15,546 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,234 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,683 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,371 |
| Rivers of the United States | 0 | - | 4.93 | 65,465 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,363 |
| Mayors of New York City | 0 | - | 3.96 | 12,134 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,355 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,477 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,455 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,024 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,653 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,487 |
| The John Adams Presidency | 0 | - | 4.12 | 8,674 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,679 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,767 |
