| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,768 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,629 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,455 |
| Vietnam War Countries | 0 | - | 4.82 | 94,600 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 635,537 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,725,046 |
| U.S. Senators by State | 0 | - | 4.44 | 40,104 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,858 |
| Random U.S. States on a Map | 0 | - | 4.96 | 630,197 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,925 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,804 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,671 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,429 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,066 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,189 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,577 |
| US States Quiz | 0 | - | 5.00 | 16,992,269 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,417 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,574 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,619 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,716 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,539 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,691 |
| The American Revolution | 0 | - | 4.52 | 54,355 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,060 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,256 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,286 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,327 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,342 |
| U.S. States By Population | 0 | - | 4.92 | 154,122 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,205 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,877 |
| US States with an Empty Map | 0 | - | 5.00 | 628,560 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,852 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,533 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,081 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,137 |
| Presidential Actors | 0 | - | 4.36 | 19,250 |
| U.S. President Scramble | 0 | - | 4.40 | 117,457 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,050 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,277 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,500 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,094 |
| Draw All US State Borders | 0 | - | 4.99 | 140,694 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,815 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,094 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,190 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,993 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,559 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,378 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,948 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,597 |
| U.S. State Flags | 0 | - | 4.89 | 172,876 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,632 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,271 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,848 |
| U.S. States Closest to Tokyo | 0 | - | 4.89 | 61,276 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,973 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,268 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,550 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,306 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,619 |
| Presidential Middle Names | 0 | - | 4.41 | 60,720 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,278 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,683 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,892 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,193 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,627 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,344 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 29,035 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,080 |
| California A-Z | 0 | - | 4.49 | 28,843 |
| California... or Florida? | 0 | - | 4.60 | 51,843 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 4.02 | 11,913 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,555,284 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,551 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,568 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,137 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,313 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,943 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,148 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,348 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,338 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,407 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,559 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,877 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,462 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,810 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,381 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,927 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,524 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,404 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,093 |
| History of Florida | 0 | - | 4.45 | 9,873 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,135 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,980 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,710 |
| History of Texas | 0 | - | 4.43 | 14,685 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,249 |
| New England States | 0 | - | 4.51 | 59,893 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,398,275 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,053 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,117 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,136 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,692,738 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,277 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,137 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,439 |
| U.S. States by Borders | 0 | - | 4.62 | 35,474 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,775 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,679 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,330 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,642 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,810 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,957 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,087 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,995 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,388 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,302 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,984 |
| Pixelated United States Map | 0 | - | 4.88 | 94,800 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,525 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,430 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,201 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,638 |
| Arms Exports - United States | 0 | - | 4.77 | 62,724 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,593 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,965 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,360 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,767 |
| First Ladies of the United States | 0 | - | 4.28 | 85,947 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,313 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,462 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,146 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,358 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,096 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 58,702 |
| The Barack Obama Presidency | 0 | - | 4.14 | 25,502 |
| The Kennedy Family | 0 | - | 3.90 | 14,100 |
| History of California | 0 | - | 4.40 | 18,796 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,262 |
| History of Illinois | 0 | - | 4.24 | 11,255 |
| History of Maryland | 0 | - | 4.06 | 6,729 |
| History of Massachusetts | 0 | - | 4.14 | 8,430 |
| History of Michigan | 0 | - | 4.26 | 6,986 |
| New York City A-Z | 0 | - | 4.18 | 32,379 |
| History of New York | 0 | - | 4.36 | 16,417 |
| History of New Jersey | 0 | - | 4.38 | 7,309 |
| History of Ohio | 0 | - | 4.14 | 7,380 |
| History of Tennessee | 0 | - | 4.29 | 7,687 |
| History of Washington State | 0 | - | 4.27 | 6,907 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,755 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,896 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,542 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,398 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,135 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 43,151 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,072 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,872 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,726 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,641 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 59,437 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,807 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,064 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,446 |
| U.S. States with Spanish Names | 0 | - | 4.49 | 88,253 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.30 | 44,666 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,562 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,233 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,385 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,289 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,942 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,119 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,682 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,760 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,031 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,219 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,669 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,817 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,643 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,448 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,019 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,981 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 79,268 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,943 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,427 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,669 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,062 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,253 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,205 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,488 |
| The Iraq War | 0 | - | 4.47 | 15,703 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,019 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,823 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,919 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,690 |
| Rivers of the United States | 0 | - | 4.93 | 66,646 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,693 |
| Mayors of New York City | 0 | - | 3.96 | 12,285 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,608 |
