| U.S. Presidents Quiz | 0 | - | 5.00 | 3,653,025 |
| The American Revolution | 0 | - | 4.52 | 54,050 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,852 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,696 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,393 |
| Hawaiian Islands | 0 | - | 4.83 | 42,424 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,083 |
| U.S. State Flags | 0 | - | 4.89 | 167,001 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,440 |
| The Iraq War | 0 | - | 4.47 | 15,549 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,013 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,847 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,894 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,924 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,455 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,991 |
| Presidential Middle Names | 0 | - | 4.41 | 59,689 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,718 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,800 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,161 |
| The American Civil War | 0 | - | 4.62 | 52,150 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,597 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,685 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,320 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,216 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,223 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,651 |
| Hindu Countries | 0 | - | 4.85 | 49,551 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,733 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,221 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,184 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,026 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,195 |
| The Persian Gulf War | 0 | - | 4.02 | 8,400 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,255 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,703 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,410 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,315 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,343 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,136 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,878 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,669 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,244 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,594 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,163 |
| First Ladies of the United States | 0 | - | 4.28 | 85,230 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,110 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,261 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,998 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,829 |
| Harvard University | 0 | - | 4.15 | 8,260 |
| Six Flags Over Texas | 0 | - | 4.79 | 63,003 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,728 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,363 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,909 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,682 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,611 |
| Asia Map Quiz | 0 | - | 4.99 | 906,819 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,771 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,671 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,881 |
| Arms Exports - United States | 0 | - | 4.70 | 54,335 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,102 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,857 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,509 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,791 |
| Georgia Counties | 0 | - | 4.50 | 49,083 |
| New York Counties | 0 | - | 4.64 | 49,881 |
| Texas Counties | 0 | - | 4.55 | 76,030 |
| North Carolina Counties | 0 | - | 4.53 | 52,694 |
| Ohio Counties | 0 | - | 4.47 | 45,389 |
| Pennsylvania Counties | 0 | - | 4.48 | 52,070 |
| Virginia Counties | 0 | - | 4.45 | 32,924 |
| West Virginia Counties | 0 | - | 4.61 | 33,528 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 44,909 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,242 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,749 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,481 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,454 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 63,518 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,274 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,805 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,340 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,613 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,439 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,682 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,938 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,296 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,371 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,850 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,893 |
| History of Florida | 0 | - | 4.45 | 9,763 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,041 |
| History of Texas | 0 | - | 4.43 | 14,552 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,477 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,074 |
| US States Quiz | 0 | - | 5.00 | 16,695,966 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,358 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,337 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,906 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,220 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,338 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,739 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,379 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,215 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,006 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,685 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,462 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,334 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,720 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,645 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,379 |
| Monarchies of Asia | 0 | - | 4.97 | 70,590 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,426 |
| Countries of the Middle East | 0 | - | 4.96 | 198,862 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,199 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,769 |
| Countries Bordering India | 0 | - | 4.98 | 162,584 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,163 |
| Countries Closest to India | 0 | - | 4.97 | 102,198 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.42 | 33,215 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,767 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,324 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,850 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,164 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,347 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,937 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,826 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,637 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,122 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,828 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,874 |
| Pixelated United States Map | 0 | - | 4.89 | 93,453 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,435 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,827 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,732 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,508 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,374 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,457 |
| The George Washington Presidency | 0 | - | 4.03 | 14,473 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,658 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,496 |
| The John Adams Presidency | 0 | - | 4.12 | 8,676 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,868 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,681 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,608 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,770 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 178,504 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,330 |
| California Counties | 0 | - | 4.39 | 118,109 |
| Colorado Counties | 0 | - | 4.44 | 26,307 |
| Florida Counties | 0 | - | 4.39 | 48,100 |
| State Quiz - Hawaii | 0 | - | 4.35 | 64,919 |
| Illinois Counties | 0 | - | 4.56 | 30,052 |
| Indiana Counties | 0 | - | 4.46 | 28,606 |
| Michigan Counties | 0 | - | 4.63 | 30,038 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,608 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,730 |
| Las Vegas Casinos | 0 | - | 4.12 | 37,969 |
| New Jersey Counties | 0 | - | 4.56 | 29,925 |
| Washington Counties | 0 | - | 4.78 | 26,535 |
| Wisconsin Counties | 0 | - | 4.51 | 26,531 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,700 |
| Word Puzzles - U.S. States | 0 | - | 3.76 | 42,418 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,182 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,845 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,333 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,379 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,629 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,877 |
| U.S. States By Population | 0 | - | 4.92 | 152,333 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,374 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,843 |
| US States with an Empty Map | 0 | - | 5.00 | 618,651 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,882 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,221 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,534 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,754 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,865 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,280 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,802 |
| Books by U.S. State | 0 | - | 4.20 | 13,945 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.46 | 19,194 |
| Corporations by U.S. State - Multiple Choice | 0 | - | 4.11 | 10,180 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,853 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,067 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,465 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,058 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,653 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,815 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,124 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,216 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,096 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,944 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,938 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,776 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,228 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,533 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,483 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,144 |
