| Deadliest U.S. Wars | 0 | - | 4.89 | 192,000 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,731,296 |
| The Vietnam War | 0 | - | 4.44 | 35,691 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,830 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,970 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,634 |
| Countries in World War I | 0 | - | 4.88 | 229,461 |
| Hawaiian Islands | 0 | - | 4.83 | 43,011 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,577 |
| U.S. State Flags | 0 | - | 4.89 | 173,483 |
| Battle to Country | 0 | - | 4.91 | 54,121 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,166 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,892 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,668 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,469 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,758 |
| Presidential Middle Names | 0 | - | 4.42 | 60,805 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,745 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,939 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,657 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 50,476 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,375 |
| Countries in World War II | 0 | - | 4.54 | 920,373 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,255 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,216 |
| The Iraq War | 0 | - | 4.47 | 15,719 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,633 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,274 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 637,322 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,663 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,021 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,694 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,269 |
| Important Cities in WWII | 0 | - | 4.42 | 94,283 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,363 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,163 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,876 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,884 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,179 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,382 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,798 |
| First Ladies of the United States | 0 | - | 4.28 | 86,024 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,337 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,903 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,534 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,386 |
| Harvard University | 0 | - | 4.15 | 8,335 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,163 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,346 |
| U.S. States that Border Canada | 0 | - | 4.91 | 187,066 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,962 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,219 |
| The Persian Gulf War | 0 | - | 4.02 | 8,490 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,965 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,982 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,039 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,072 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,314 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,875 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,761 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,488 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,035 |
| American Founding Fathers | 0 | - | 4.42 | 23,291 |
| Florida Counties | 0 | - | 4.41 | 49,207 |
| History of Florida | 0 | - | 4.45 | 9,883 |
| Georgia Counties | 0 | - | 4.52 | 50,204 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,217 |
| New York Counties | 0 | - | 4.65 | 51,336 |
| Texas Counties | 0 | - | 4.56 | 78,122 |
| History of Texas | 0 | - | 4.43 | 14,699 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,337 |
| North Carolina Counties | 0 | - | 4.55 | 53,841 |
| Ohio Counties | 0 | - | 4.48 | 46,388 |
| Pennsylvania Counties | 0 | - | 4.51 | 53,531 |
| Virginia Counties | 0 | - | 4.45 | 33,548 |
| West Virginia Counties | 0 | - | 4.63 | 34,071 |
| American History Quotes #1 | 0 | - | 4.37 | 96,249 |
| American History Quotes #2 | 0 | - | 4.38 | 41,533 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,364 |
| US States Quiz | 0 | - | 5.00 | 17,023,929 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.58 | 35,416 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,894 |
| Satellite Images - U.S. States | 0 | - | 4.54 | 45,422 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,580 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 42,209 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 64,175 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,784 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,914 |
| Monarchies of Europe | 0 | - | 4.90 | 99,044 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,754 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,562 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,221 |
| Monarchies of Asia | 0 | - | 4.97 | 71,614 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,360 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,954 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,600 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,569 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,754 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,063 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,260 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,193 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,789 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,776 |
| The John Adams Presidency | 0 | - | 4.12 | 8,799 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,786 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,940 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,634 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,827 |
| Word Puzzles - U.S. States | 0 | - | 3.76 | 42,613 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,899 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,078 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,955 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,984 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,351 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,271 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,129 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,045 |
| Name the English Monarchs | 0 | - | 4.91 | 507,409 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,817 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,755 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,556 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,932 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,710 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,493 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,601 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,689 |
| Puerto Rico Trivia | 0 | - | 4.52 | 12,079 |
| Top U.S. Universities | 0 | - | 4.15 | 145,994 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,459 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,119 |
| Pixelated United States Map | 0 | - | 4.89 | 94,939 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,758 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,600 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,406 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,916 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,920 |
| U.S. States by Governor | 0 | - | 4.43 | 18,122 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,785 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,806 |
| The George Washington Presidency | 0 | - | 4.03 | 14,622 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 17,001 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,776 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 179,972 |
| History of California | 0 | - | 4.40 | 18,805 |
| California Counties | 0 | - | 4.39 | 120,557 |
| Colorado Counties | 0 | - | 4.45 | 27,013 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,271 |
| State Quiz - Hawaii | 0 | - | 4.35 | 65,761 |
| Illinois Counties | 0 | - | 4.56 | 30,719 |
| History of Illinois | 0 | - | 4.24 | 11,262 |
| Indiana Counties | 0 | - | 4.46 | 29,261 |
| History of Maryland | 0 | - | 4.06 | 6,743 |
| History of Massachusetts | 0 | - | 4.14 | 8,442 |
| Michigan Counties | 0 | - | 4.63 | 30,948 |
| History of Michigan | 0 | - | 4.26 | 6,992 |
| History of New York | 0 | - | 4.36 | 16,430 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,873 |
| New Jersey Counties | 0 | - | 4.57 | 30,704 |
| History of New Jersey | 0 | - | 4.38 | 7,319 |
| History of Ohio | 0 | - | 4.14 | 7,390 |
| History of Tennessee | 0 | - | 4.29 | 7,693 |
| Washington Counties | 0 | - | 4.75 | 27,207 |
| History of Washington State | 0 | - | 4.27 | 6,922 |
| Wisconsin Counties | 0 | - | 4.51 | 27,394 |
| Events in U.S. History | 0 | - | 4.41 | 28,860 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,582 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,221 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,721 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,194 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.55 | 18,325 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 43,196 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,444 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,466 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,524 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,575 |
| U.S. States By Population | 0 | - | 4.92 | 154,263 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,378 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,983 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,762 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,923 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,462 |
| US States with an Empty Map | 0 | - | 5.00 | 629,628 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,175 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,501 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,983 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,600 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,210 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,716 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,786 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,574 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 43,005 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 23,155 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.46 | 19,360 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,176 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,321 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,773 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,878 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,722 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 65,056 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,485 |
