| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,309 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,529 |
| U.S. Senators by State | 0 | - | 4.44 | 40,062 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,932 |
| Vietnam War Countries | 0 | - | 4.82 | 94,494 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 632,737 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,395 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,923 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,433 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,738 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,129 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,879 |
| Presidents that Beat Thomas Jefferson | 0 | - | 4.49 | 25,057 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,722 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,572 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,362 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 24,026 |
| U.S. President Scramble | 0 | - | 4.40 | 117,340 |
| US States Quiz | 0 | - | 5.00 | 16,960,574 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,229 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,496 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,204 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,784 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,999 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,015 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,657 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,015 |
| U.S. States By Population | 0 | - | 4.92 | 153,960 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,986 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,756 |
| US States with an Empty Map | 0 | - | 5.00 | 627,431 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,707 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,441 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,952 |
| Presidential Actors | 0 | - | 4.36 | 19,226 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,969 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,028 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,078 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,101 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,107 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,941 |
| Draw All US State Borders | 0 | - | 4.99 | 139,816 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,641 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,769 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,885 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,565 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,100 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,356 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,870 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,538 |
| U.S. State Flags | 0 | - | 4.89 | 172,141 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,177 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,018 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 135,266 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,776 |
| U.S. States Closest to Tokyo | 0 | - | 4.89 | 61,043 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,916 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,169 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,038 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,398 |
| Presidential Middle Names | 0 | - | 4.41 | 60,591 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,254 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,563 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,797 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,142 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,565 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,298 |
| The American Revolution | 0 | - | 4.52 | 54,324 |
| California... or Florida? | 0 | - | 4.60 | 51,757 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,551,606 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,526 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,160 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,055 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,375 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,025 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,049 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,762 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,329 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,586 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,146 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,798 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,272 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,751 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,045 |
| History of Florida | 0 | - | 4.45 | 9,863 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,129 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,762 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,591 |
| History of Texas | 0 | - | 4.43 | 14,676 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,169 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,396,805 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,985 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,087 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,028 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,689,809 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,217 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,085 |
| U.S. States by Borders | 0 | - | 4.61 | 35,431 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 187,922 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,635 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,255 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,321 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,575 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,330 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,469 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,712 |
| Pixelated United States Map | 0 | - | 4.88 | 94,647 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,257 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,235 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,967 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,312 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,760 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,326 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,715 |
| First Ladies of the United States | 0 | - | 4.28 | 85,853 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,279 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,381 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,134 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,312 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,061 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,469 |
| The Kennedy Family | 0 | - | 3.90 | 14,091 |
| California A-Z | 0 | - | 4.49 | 28,826 |
| History of California | 0 | - | 4.40 | 18,785 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,252 |
| History of Illinois | 0 | - | 4.24 | 11,249 |
| History of Maryland | 0 | - | 4.06 | 6,720 |
| History of Massachusetts | 0 | - | 4.14 | 8,417 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 4.02 | 11,901 |
| History of Michigan | 0 | - | 4.26 | 6,972 |
| History of New York | 0 | - | 4.36 | 16,401 |
| History of New Jersey | 0 | - | 4.38 | 7,300 |
| History of Ohio | 0 | - | 4.14 | 7,372 |
| History of Tennessee | 0 | - | 4.29 | 7,682 |
| History of Washington State | 0 | - | 4.27 | 6,899 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,560 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,879 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,527 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,330 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,068 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 65,996 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,848 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,670 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,579 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,297 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,712 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,940 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 88,130 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,541 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,038 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,285 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,219 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,895 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,046 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,631 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,718 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,505 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,070 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,563 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,755 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,552 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,274 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,912 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,889 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 79,053 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,237 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,421 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,921 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,021 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,369 |
| The Iraq War | 0 | - | 4.47 | 15,690 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,955 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,734 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,773 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,570 |
| U.S. Presidents Who Added the Most Territory | 0 | - | 4.66 | 14,196 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,911 |
| Rivers of the United States | 0 | - | 4.93 | 66,536 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,542 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,227 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,582 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,799 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,199 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,764 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,723 |
| The John Adams Presidency | 0 | - | 4.12 | 8,770 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,759 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,896 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,895 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,642 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,122 |
| Hawaiian Islands | 0 | - | 4.83 | 42,853 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,456 |
| Harvard University | 0 | - | 4.15 | 8,317 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,460 |
| Regions of U.S. States | 0 | - | 4.37 | 44,099 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,406 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,619 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,708 |
