| U.S. Presidents Quiz | 0 | - | 5.00 | 3,671,744 |
| The American Revolution | 0 | - | 4.52 | 54,134 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,019 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,811 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,756 |
| Hawaiian Islands | 0 | - | 4.83 | 42,545 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,193 |
| U.S. State Flags | 0 | - | 4.89 | 168,592 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,866 |
| The Iraq War | 0 | - | 4.47 | 15,587 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,451 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,259 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,223 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,876 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,292 |
| Presidential Middle Names | 0 | - | 4.41 | 59,899 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,954 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,165 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,264 |
| The American Civil War | 0 | - | 4.62 | 52,260 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,737 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,589 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,825 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,637 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,864 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,931 |
| Hindu Countries | 0 | - | 4.86 | 49,797 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,842 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,683 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,218 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,122 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,469 |
| The Persian Gulf War | 0 | - | 4.02 | 8,423 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,420 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,920 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,782 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,592 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,481 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,165 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,958 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,695 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 621,895 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,848 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,573 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,193 |
| First Ladies of the United States | 0 | - | 4.28 | 85,354 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,154 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,643 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,073 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,877 |
| Harvard University | 0 | - | 4.15 | 8,279 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,130 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,834 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,519 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,971 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,728 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,630 |
| Asia Map Quiz | 0 | - | 4.99 | 910,340 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,346 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,168 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,827 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,955 |
| Arms Exports - United States | 0 | - | 4.75 | 61,773 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,291 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,061 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,264 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,592 |
| Georgia Counties | 0 | - | 4.50 | 49,231 |
| New York Counties | 0 | - | 4.65 | 50,165 |
| Texas Counties | 0 | - | 4.55 | 76,380 |
| North Carolina Counties | 0 | - | 4.53 | 52,902 |
| Ohio Counties | 0 | - | 4.47 | 45,589 |
| Pennsylvania Counties | 0 | - | 4.48 | 52,373 |
| Virginia Counties | 0 | - | 4.45 | 33,104 |
| West Virginia Counties | 0 | - | 4.62 | 33,638 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 45,015 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,341 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,843 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,409 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,162 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 63,681 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,399 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,169 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,519 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,750 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,122 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,846 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,175 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,755 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,513 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,127 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,030 |
| History of Florida | 0 | - | 4.45 | 9,787 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,389 |
| History of Texas | 0 | - | 4.43 | 14,576 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,658 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,131 |
| US States Quiz | 0 | - | 5.00 | 16,769,174 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,451 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,201 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,471 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,437 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,779 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,171 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,693 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,544 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,439 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,226 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,911 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,727 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,542 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,778 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,732 |
| Monarchies of Asia | 0 | - | 4.97 | 70,799 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,598 |
| Countries of the Middle East | 0 | - | 4.96 | 199,740 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,478 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,991 |
| Countries Bordering India | 0 | - | 4.98 | 163,168 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,286 |
| Countries Closest to India | 0 | - | 4.97 | 102,435 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.42 | 33,391 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,945 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,509 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,126 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,471 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,713 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,959 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,517 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,968 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,680 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,072 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,506 |
| Pixelated United States Map | 0 | - | 4.89 | 93,773 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,933 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,196 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,833 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,657 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,416 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,540 |
| The George Washington Presidency | 0 | - | 4.03 | 14,499 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,682 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,557 |
| The John Adams Presidency | 0 | - | 4.12 | 8,701 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,900 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,710 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,636 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,806 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 178,969 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,390 |
| California Counties | 0 | - | 4.39 | 118,505 |
| Colorado Counties | 0 | - | 4.44 | 26,469 |
| Florida Counties | 0 | - | 4.39 | 48,275 |
| State Quiz - Hawaii | 0 | - | 4.35 | 65,093 |
| Illinois Counties | 0 | - | 4.56 | 30,175 |
| Indiana Counties | 0 | - | 4.46 | 28,724 |
| Michigan Counties | 0 | - | 4.63 | 30,170 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,868 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,767 |
| Las Vegas Casinos | 0 | - | 4.12 | 38,011 |
| New Jersey Counties | 0 | - | 4.56 | 30,109 |
| Washington Counties | 0 | - | 4.78 | 26,677 |
| Wisconsin Counties | 0 | - | 4.51 | 26,710 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,281 |
| Word Puzzles - U.S. States | 0 | - | 3.76 | 42,453 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,209 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,863 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,865 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,860 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,288 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,520 |
| U.S. States By Population | 0 | - | 4.92 | 152,739 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,841 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,143 |
| US States with an Empty Map | 0 | - | 5.00 | 621,069 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,161 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,047 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,901 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,959 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,220 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,360 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,857 |
| Books by U.S. State | 0 | - | 4.20 | 13,966 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.46 | 19,222 |
| Corporations by U.S. State - Multiple Choice | 0 | - | 4.11 | 10,197 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,473 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,332 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,808 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,283 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,940 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,155 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,697 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,971 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,371 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,414 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,122 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,373 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,762 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,353 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,661 |
