| U.S. Presidents Quiz | 0 | - | 5.00 | 3,652,200 |
| The American Revolution | 0 | - | 4.52 | 54,047 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,843 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,596 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,375 |
| Hawaiian Islands | 0 | - | 4.83 | 42,421 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,077 |
| U.S. State Flags | 0 | - | 4.89 | 166,943 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,426 |
| The Iraq War | 0 | - | 4.47 | 15,547 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,006 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,820 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,868 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,917 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,435 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,973 |
| Presidential Middle Names | 0 | - | 4.41 | 59,680 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,706 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,791 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,156 |
| The American Civil War | 0 | - | 4.62 | 52,128 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,591 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,657 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,295 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,178 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,197 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,639 |
| Hindu Countries | 0 | - | 4.85 | 49,533 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,727 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,204 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,183 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,021 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,179 |
| The Persian Gulf War | 0 | - | 4.02 | 8,399 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,242 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,695 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,389 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,289 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,045 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,135 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,877 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,669 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,090 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,524 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,162 |
| First Ladies of the United States | 0 | - | 4.28 | 85,227 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,107 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,247 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,996 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,825 |
| Harvard University | 0 | - | 4.15 | 8,259 |
| Six Flags Over Texas | 0 | - | 4.79 | 62,998 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,724 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,333 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,906 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,679 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,317 |
| Asia Map Quiz | 0 | - | 4.99 | 906,630 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,752 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,662 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,879 |
| Arms Exports - United States | 0 | - | 4.70 | 54,320 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,092 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,849 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,482 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,752 |
| Georgia Counties | 0 | - | 4.50 | 49,072 |
| New York Counties | 0 | - | 4.64 | 49,875 |
| Texas Counties | 0 | - | 4.55 | 76,018 |
| North Carolina Counties | 0 | - | 4.53 | 52,684 |
| Ohio Counties | 0 | - | 4.47 | 45,379 |
| Pennsylvania Counties | 0 | - | 4.48 | 52,060 |
| Virginia Counties | 0 | - | 4.45 | 32,917 |
| West Virginia Counties | 0 | - | 4.61 | 33,524 |
| Satellite Images - U.S. States | 0 | - | 4.53 | 44,907 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,233 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,745 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,412 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,425 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 63,513 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,270 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,783 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,155 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,606 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,414 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,565 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,925 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,276 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,367 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,831 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 74,889 |
| History of Florida | 0 | - | 4.45 | 9,761 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,027 |
| History of Texas | 0 | - | 4.43 | 14,551 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,466 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,071 |
| US States Quiz | 0 | - | 5.00 | 16,692,287 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,354 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,278 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,872 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,212 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,320 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,721 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,371 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,199 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,985 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,660 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,438 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,310 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,689 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,636 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,363 |
| Monarchies of Asia | 0 | - | 4.97 | 70,577 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,417 |
| Countries of the Middle East | 0 | - | 4.96 | 198,825 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,178 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,764 |
| Countries Bordering India | 0 | - | 4.98 | 162,571 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,152 |
| Countries Closest to India | 0 | - | 4.97 | 102,184 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.42 | 33,207 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,756 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,309 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,832 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,150 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,334 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,935 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,738 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,615 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,103 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,685 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,795 |
| Pixelated United States Map | 0 | - | 4.89 | 93,434 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,409 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,811 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,730 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,505 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,372 |
| 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 | 13,657 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,488 |
| The John Adams Presidency | 0 | - | 4.12 | 8,675 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,865 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,680 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,607 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,769 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 178,496 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,329 |
| California Counties | 0 | - | 4.39 | 118,073 |
| Colorado Counties | 0 | - | 4.44 | 26,305 |
| Florida Counties | 0 | - | 4.39 | 48,088 |
| State Quiz - Hawaii | 0 | - | 4.35 | 64,916 |
| Illinois Counties | 0 | - | 4.56 | 30,045 |
| Indiana Counties | 0 | - | 4.46 | 28,600 |
| Michigan Counties | 0 | - | 4.63 | 30,030 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,598 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,729 |
| Las Vegas Casinos | 0 | - | 4.12 | 37,968 |
| New Jersey Counties | 0 | - | 4.56 | 29,920 |
| Washington Counties | 0 | - | 4.78 | 26,523 |
| Wisconsin Counties | 0 | - | 4.51 | 26,527 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,677 |
| Word Puzzles - U.S. States | 0 | - | 3.76 | 42,418 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,178 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,844 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,315 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,364 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,598 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,864 |
| U.S. States By Population | 0 | - | 4.92 | 152,321 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,350 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,832 |
| US States with an Empty Map | 0 | - | 5.00 | 618,541 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,875 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,193 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,510 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,742 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,852 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,278 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,801 |
| Books by U.S. State | 0 | - | 4.20 | 13,943 |
| 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 | 158,839 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,059 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,451 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,051 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,645 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,803 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,102 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,181 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,082 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,930 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,929 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,728 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,199 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,450 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,479 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,131 |
