| U.S. Presidents Quiz | 0 | - | 5.00 | 3,658,349 |
| The American Revolution | 0 | - | 4.52 | 54,069 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,888 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,302 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,474 |
| Hawaiian Islands | 0 | - | 4.83 | 42,448 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,104 |
| U.S. State Flags | 0 | - | 4.89 | 167,487 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,544 |
| The Iraq War | 0 | - | 4.47 | 15,562 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,109 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,994 |
| U.S. Vice Presidents | 0 | - | 4.41 | 135,063 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,016 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,590 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,056 |
| Presidential Middle Names | 0 | - | 4.41 | 59,742 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,792 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,879 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,191 |
| The American Civil War | 0 | - | 4.62 | 52,181 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,636 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,845 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,456 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,349 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,305 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,748 |
| Hindu Countries | 0 | - | 4.86 | 49,627 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,764 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,374 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,189 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,055 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,274 |
| The Persian Gulf War | 0 | - | 4.02 | 8,409 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,317 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,771 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,515 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,413 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,168 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,141 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,891 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,670 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 619,239 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,994 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,171 |
| First Ladies of the United States | 0 | - | 4.28 | 85,265 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,120 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,387 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,014 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,844 |
| Harvard University | 0 | - | 4.15 | 8,267 |
| Six Flags Over Texas | 0 | - | 4.79 | 63,036 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,767 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,661 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,930 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,696 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,680 |
| Asia Map Quiz | 0 | - | 4.99 | 907,711 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,900 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,707 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,903 |
| Arms Exports - United States | 0 | - | 4.70 | 54,401 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,152 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,922 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,727 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,030 |
| Georgia Counties | 0 | - | 4.50 | 49,134 |
| New York Counties | 0 | - | 4.64 | 49,935 |
| Texas Counties | 0 | - | 4.55 | 76,101 |
| North Carolina Counties | 0 | - | 4.53 | 52,754 |
| Ohio Counties | 0 | - | 4.47 | 45,467 |
| Pennsylvania Counties | 0 | - | 4.48 | 52,130 |
| Virginia Counties | 0 | - | 4.45 | 32,943 |
| West Virginia Counties | 0 | - | 4.61 | 33,559 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 44,934 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,266 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,785 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,698 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,649 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 63,573 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,302 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,919 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,208 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,649 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,559 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,594 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,005 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,431 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,395 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,928 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,934 |
| History of Florida | 0 | - | 4.45 | 9,771 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,119 |
| History of Texas | 0 | - | 4.43 | 14,560 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,537 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,088 |
| US States Quiz | 0 | - | 5.00 | 16,715,577 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,372 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,639 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,042 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,282 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,408 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,862 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,481 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,321 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,129 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,839 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,585 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,445 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,954 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,678 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,490 |
| Monarchies of Asia | 0 | - | 4.97 | 70,641 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,458 |
| Countries of the Middle East | 0 | - | 4.96 | 199,104 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,275 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,828 |
| Kazakhstan Country Quiz | 0 | - | 4.82 | 34,301 |
| Countries Bordering India | 0 | - | 4.98 | 162,646 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,194 |
| Countries Closest to India | 0 | - | 4.97 | 102,244 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.42 | 33,260 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,812 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,384 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,914 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,211 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,417 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,944 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,174 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,721 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,268 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,159 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,324 |
| Pixelated United States Map | 0 | - | 4.89 | 93,559 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,564 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,928 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,762 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,554 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,385 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,480 |
| The George Washington Presidency | 0 | - | 4.03 | 14,480 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,665 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,516 |
| The John Adams Presidency | 0 | - | 4.12 | 8,682 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,875 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,689 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,614 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,779 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 178,601 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,344 |
| California Counties | 0 | - | 4.39 | 118,195 |
| Colorado Counties | 0 | - | 4.44 | 26,328 |
| Florida Counties | 0 | - | 4.39 | 48,128 |
| State Quiz - Hawaii | 0 | - | 4.35 | 64,968 |
| Illinois Counties | 0 | - | 4.56 | 30,095 |
| Indiana Counties | 0 | - | 4.46 | 28,629 |
| Michigan Counties | 0 | - | 4.63 | 30,073 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,679 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,743 |
| Las Vegas Casinos | 0 | - | 4.12 | 37,977 |
| New Jersey Counties | 0 | - | 4.56 | 29,949 |
| Washington Counties | 0 | - | 4.78 | 26,581 |
| Wisconsin Counties | 0 | - | 4.51 | 26,591 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,827 |
| Word Puzzles - U.S. States | 0 | - | 3.76 | 42,427 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,188 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,853 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,447 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,492 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,767 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,023 |
| U.S. States By Population | 0 | - | 4.92 | 152,448 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,493 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,914 |
| US States with an Empty Map | 0 | - | 5.00 | 619,344 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,942 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,409 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,614 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,792 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,942 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,298 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,815 |
| Books by U.S. State | 0 | - | 4.20 | 13,949 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.46 | 19,204 |
| Corporations by U.S. State - Multiple Choice | 0 | - | 4.11 | 10,182 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,953 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,117 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,538 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,095 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,703 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,880 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,227 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,371 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,154 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,049 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,008 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,035 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,426 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,977 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,519 |
