| Deadliest U.S. Wars | 0 | - | 4.82 | 157,830 |
| The Vietnam War | 0 | - | 4.41 | 32,776 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,163,148 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 107,209 |
| Six Flags Over Texas | 0 | - | 4.84 | 58,670 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 458,393 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 207,712 |
| Countries in World War I | 0 | - | 4.89 | 209,323 |
| Hawaiian Islands | 0 | - | 4.85 | 38,463 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 57,793 |
| U.S. State Flags | 0 | - | 4.88 | 135,992 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 51,801 |
| Battle to Country | 0 | - | 4.92 | 35,260 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,523 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 76,406 |
| U.S. Vice Presidents | 0 | - | 4.42 | 119,221 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,790 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 81,409 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,613 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,918 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,519 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 41,217 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 50,926 |
| Countries in World War II | 0 | - | 4.66 | 809,068 |
| The Iraq War | 0 | - | 4.43 | 14,345 |
| United States Map Quiz | 0 | - | 4.98 | 3,897,672 |
| American Monopoly Board - Map Quiz | 0 | - | 4.48 | 20,027 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 506,435 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,761 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 100,503 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,040 |
| Important Cities in WWII | 0 | - | 4.48 | 83,177 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.38 | 7,868 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,296 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 393,974 |
| Governors Who Ran For President | 0 | - | 4.47 | 18,877 |
| U.S. Presidents by Event | 0 | - | 4.58 | 29,073 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 25,664 |
| First Ladies of the United States | 0 | - | 4.27 | 79,812 |
| Presidential Middle Names | 0 | - | 4.37 | 56,063 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,825 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 352,609 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 64,032 |
| U.S. Presidents Who Died in Office | 0 | - | 4.75 | 31,182 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,174 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 13,867 |
| Harvard University | 0 | - | 4.15 | 7,723 |
| Las Vegas Casinos Quiz | 0 | - | 4.07 | 32,436 |
| U.S. Civil War Decoder | 0 | - | 4.16 | 24,046 |
| U.S. States that Border Canada | 0 | - | 4.90 | 165,675 |
| Monarchies of Asia | 0 | - | 4.95 | 53,914 |
| U.S. State Border Crossings | 0 | - | 4.96 | 82,008 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 221,881 |
| Third Most Common Language by U.S. State | 0 | - | 4.91 | 106,862 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.83 | 33,087 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 65,108 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.43 | 69,003 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.70 | 73,630 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.52 | 69,931 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 166,619 |
| History of Florida | 0 | - | 4.44 | 8,709 |
| Georgia Counties | 0 | - | 4.48 | 41,324 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 60,158 |
| New York Counties Quiz | 0 | - | 4.59 | 39,932 |
| Texas Counties | 0 | - | 4.51 | 63,568 |
| History of Texas | 0 | - | 4.41 | 13,476 |
| North Carolina Counties | 0 | - | 4.50 | 44,161 |
| Pennsylvania Counties | 0 | - | 4.41 | 42,220 |
| American History Quotes #1 | 0 | - | 4.40 | 91,315 |
| American History Quotes #2 | 0 | - | 4.34 | 39,202 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 34,217 |
| Last Names in U.S. History #2 | 0 | - | 4.41 | 15,951 |
| US States Quiz | 0 | - | 5.00 | 14,702,707 |
| Major U.S. Rivers with State Names | 0 | - | 4.51 | 36,387 |
| Satellite Images - U.S. States | 0 | - | 4.55 | 41,436 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 38,906 |
| U.S. States by Nickname | 0 | - | 4.57 | 65,894 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,520 |
| Monarchies of Europe | 0 | - | 4.88 | 86,845 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,095 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 133,398 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,063 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,173 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 99,732 |
| English Monarchs Quiz | 0 | - | 4.91 | 446,191 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,375 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 54,557 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 101,611 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.90 | 92,514 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 93,304 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 109,411 |
| Category Elimination - African Geography #1 | 0 | - | 4.89 | 79,424 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 81,208 |
| Total United States Immigration by Country | 0 | - | 4.89 | 96,486 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 146,527 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 184,198 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,853 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.33 | 10,334 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,851 |
| The John Adams Presidency | 0 | - | 4.10 | 7,957 |
| The Theodore Roosevelt Presidency | 0 | - | 4.31 | 7,132 |
| U.S. Vice Presidential Trivia | 0 | - | 4.29 | 11,369 |
| California Counties Map Quiz | 0 | - | 4.33 | 32,780 |
| Word Puzzles - U.S. States | 0 | - | 3.72 | 40,196 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 339,692 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 180,588 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 115,348 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 178,494 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 200,277 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 142,451 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,081 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 221,786 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 80,348 |
| The Persian Gulf War | 0 | - | 3.98 | 7,689 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 67,021 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 87,534 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 67,228 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 67,657 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 68,080 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,022 |
| Top U.S. Universities | 0 | - | 4.12 | 112,838 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,956 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 273,128 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.52 | 33,947 |
| Pixelated United States Map | 0 | - | 4.90 | 81,993 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 92,958 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 78,386 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 124,221 |
| Biggest Trading Partners - US | 0 | - | 4.63 | 101,442 |
| Countries that Beat the United States | 0 | - | 4.92 | 145,311 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 16,934 |
| U.S. Political Parties in History | 0 | - | 4.42 | 26,135 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,623 |
| The George Washington Presidency | 0 | - | 4.02 | 13,616 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.33 | 10,679 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,493 |
| Star-Spangled Banner Quiz | 0 | - | 4.37 | 169,590 |
| American Founding Fathers | 0 | - | 4.36 | 22,078 |
| History of California | 0 | - | 4.38 | 17,502 |
| California Counties | 0 | - | 4.38 | 97,591 |
| Colorado Counties Quiz | 0 | - | 4.46 | 21,502 |
| Florida Counties | 0 | - | 4.35 | 40,215 |
| History of Georgia (U.S. State) | 0 | - | 4.33 | 12,341 |
| State Quiz - Hawaii | 0 | - | 4.34 | 55,197 |
| Illinois Counties Quiz | 0 | - | 4.51 | 24,996 |
| History of Illinois | 0 | - | 4.28 | 10,420 |
| Indiana Counties Quiz | 0 | - | 4.48 | 23,912 |
| History of Massachusetts | 0 | - | 4.10 | 7,472 |
| Michigan Counties Quiz | 0 | - | 4.55 | 24,972 |
| History of Michigan | 0 | - | 4.21 | 6,249 |
| History of New York | 0 | - | 4.33 | 15,127 |
| New Jersey Counties | 0 | - | 4.51 | 24,307 |
| History of New Jersey | 0 | - | 4.29 | 6,504 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.84 | 21,474 |
| Counties of Ohio | 0 | - | 4.37 | 38,353 |
| History of Ohio | 0 | - | 4.12 | 6,666 |
| History of Tennessee | 0 | - | 4.21 | 7,036 |
| Virginia Counties Quiz | 0 | - | 4.44 | 28,235 |
| Washington Counties | 0 | - | 4.73 | 21,231 |
| History of Washington State | 0 | - | 4.21 | 6,239 |
| West Virginia Counties Quiz | 0 | - | 4.55 | 29,580 |
| Wisconsin Counties Quiz | 0 | - | 4.44 | 21,815 |
| American History A-Z | 0 | - | 4.32 | 16,354 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 100,353 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.58 | 17,156 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.32 | 39,838 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.55 | 28,045 |
| U.S. States with the Letter Y | 0 | - | 4.87 | 95,922 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 98,988 |
| U.S. States with Short Names | 0 | - | 4.87 | 129,410 |
| U.S. States that Start with M | 0 | - | 4.91 | 150,156 |
| U.S. States By Population | 0 | - | 4.90 | 129,813 |
| U.S. States that Start with N | 0 | - | 4.95 | 155,238 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,929 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 62,080 |
| U.S. States by Church Attendance | 0 | - | 4.58 | 30,229 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,673 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 36,002 |
| US States with an Empty Map | 0 | - | 5.00 | 552,840 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 73,507 |
| States in a Tank of the U.S. Map | 0 | - | 4.50 | 27,827 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 77,616 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 58,228 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 55,889 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 40,519 |
| U.S. State Superlatives #1 | 0 | - | 4.46 | 75,467 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,263 |
| TV Shows by U.S. State | 0 | - | 4.32 | 45,181 |
| U.S. States by Alternate Nicknames | 0 | - | 4.22 | 41,508 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.59 | 21,051 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.47 | 18,197 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 145,167 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 167,757 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,952 |
| Top 10 Newest U.S. States | 0 | - | 4.81 | 68,007 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,522 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 58,394 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 89,252 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 73,075 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.45 | 39,343 |
