| Vietnam War Countries | 0 | - | 4.82 | 94,765 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,731,729 |
| The American Revolution | 0 | - | 4.52 | 54,394 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,738 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,568 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,698 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,753 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,700 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,679 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,484 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,768 |
| Presidential Middle Names | 0 | - | 4.42 | 60,812 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,755 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,944 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,661 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,260 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,052 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,525 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,202 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,383 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,799 |
| First Ladies of the United States | 0 | - | 4.28 | 86,031 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,339 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,543 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,387 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,388 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,962 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,099 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,120 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,843 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,661 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,561 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,594 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,952 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 90,122 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,802 |
| Arms Exports - United States | 0 | - | 4.77 | 62,809 |
| The George Washington Presidency | 0 | - | 4.03 | 14,622 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,789 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,778 |
| The John Adams Presidency | 0 | - | 4.12 | 8,799 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 17,003 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,788 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,398 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,777 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,941 |
| Harvard University | 0 | - | 4.15 | 8,335 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,787 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,857 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,904 |
| The Iraq War | 0 | - | 4.47 | 15,720 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,039 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,319 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,773 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,712 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,239 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,343 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,087 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,969 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,606 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,995 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,580 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,081 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,771 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,093 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,335 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,174 |
| U.S. Senators by State | 0 | - | 4.44 | 40,148 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 637,473 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.38 | 24,091 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 194,980 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,671 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,258 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,838 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,166 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,343 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,346 |
| US States Quiz | 0 | - | 5.00 | 17,025,725 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,915 |
| Countries of the German Empire | 0 | - | 4.51 | 38,314 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,564 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,139 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,872 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,173 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,784 |
| The Persian Gulf War | 0 | - | 4.02 | 8,491 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,232 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,118 |
| 10 Longest Rivers in the United States | 0 | - | 4.86 | 39,465 |
| Pixelated United States Map | 0 | - | 4.89 | 94,951 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,769 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,616 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,421 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,934 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,642 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,660 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,117 |
| The Kennedy Family | 0 | - | 3.90 | 14,108 |
| American Revolution Decoder | 0 | - | 4.12 | 21,004 |
| California A-Z | 0 | - | 4.49 | 28,859 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,259 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,673 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,031 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,208 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,051 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,453 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,472 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,541 |
| U.S. States that Start with M | 0 | - | 4.94 | 188,590 |
| U.S. States By Population | 0 | - | 4.92 | 154,273 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,393 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,993 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,471 |
| US States with an Empty Map | 0 | - | 5.00 | 629,684 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,183 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,503 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,995 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,607 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,223 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,188 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,329 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,783 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,883 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,730 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,589 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,120 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,073 |
| Merged U.S. States | 0 | - | 4.37 | 44,461 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,420 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,629 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,655 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,002 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,420 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,211 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,900 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,635 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,236 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,742 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.43 | 33,903 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,538 |
| South America Flags Map Quiz | 0 | - | 4.95 | 89,178 |
| Rivers of the United States | 0 | - | 4.93 | 66,798 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,843 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,877 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,763 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,489 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,922 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,933 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,317 |
| History of Florida | 0 | - | 4.45 | 9,886 |
| Hawaiian Islands | 0 | - | 4.83 | 43,019 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,244 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,710 |
| Boston Red Sox Trivia | 0 | - | 4.09 | 7,594 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,283 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,194 |
| History of Texas | 0 | - | 4.43 | 14,703 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,580 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,558,732 |
| U.S. State Flags | 0 | - | 4.88 | 173,542 |
| U.S. States that Border Canada | 0 | - | 4.91 | 187,103 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,583 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,623 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,149 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,909 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,464 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,295 |
| Random U.S. States on a Map | 0 | - | 4.96 | 631,316 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 71,030 |
| U.S. State Birds | 0 | - | 4.31 | 21,528 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,058 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,716 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 93,005 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,288 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,547 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,226 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,207 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,145 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,453 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,505 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,630 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,034 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,095 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,312 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,923 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 171,213 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 26,172 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,286 |
| Flags of Countries that Border China | 0 | - | 4.94 | 100,252 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,185 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,810 |
| Territories of the United States | 0 | - | 4.80 | 52,676 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,701 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,935 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,263 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,297 |
| United States Country Quiz | 0 | - | 4.43 | 102,366 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,606 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,105 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,498 |
