| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 121,943 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,132,367 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 391,648 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 129,997 |
| Vietnam War Countries | 0 | - | 4.80 | 85,463 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 164,727 |
| Play-Doh Presidents | 0 | - | 5.00 | 73,787 |
| Countries of Europe After World War II | 0 | - | 4.98 | 169,073 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 137,807 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 99,195 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 97,686 |
| Random U.S. States on a Map | 0 | - | 4.95 | 477,089 |
| The Iraq War | 0 | - | 4.43 | 14,257 |
| U.S. Vice Presidents | 0 | - | 4.42 | 117,978 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,077 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 80,436 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,418 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,203 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,393 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,397 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.31 | 16,713 |
| American Revolution Decoder | 0 | - | 4.12 | 19,914 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,781 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 124,704 |
| U.S. Bill of Rights | 0 | - | 4.56 | 30,964 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 275,727 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 51,509 |
| Six Flags Over Texas | 0 | - | 4.84 | 58,388 |
| United States Map Quiz | 0 | - | 4.98 | 3,880,042 |
| Arms Exports - United States | 0 | - | 4.64 | 48,537 |
| Governors Who Ran For President | 0 | - | 4.46 | 18,830 |
| U.S. Presidents by Event | 0 | - | 4.57 | 28,882 |
| First Ladies of the United States | 0 | - | 4.27 | 79,416 |
| Presidential Middle Names | 0 | - | 4.36 | 55,866 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,749 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 350,709 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 62,517 |
| U.S. Presidents Who Died in Office | 0 | - | 4.72 | 31,017 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,017 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.62 | 13,719 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 21,753 |
| The John F. Kennedy Presidency | 0 | - | 4.45 | 40,755 |
| American Founding Fathers | 0 | - | 4.36 | 22,037 |
| U.S. Civil War Decoder | 0 | - | 4.16 | 23,948 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 192,964 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,564 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 106,020 |
| U.S. President Scramble | 0 | - | 4.39 | 90,120 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.46 | 20,686 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 44,887 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 47,676 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,431 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 73,889 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,811 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,241 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 83,532 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.83 | 54,025 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,328 |
| African Countries with the Most Christians | 0 | - | 4.92 | 66,621 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,402 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,472 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,391 |
| Total United States Immigration by Country | 0 | - | 4.89 | 95,830 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,588 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 145,066 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 181,856 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,234 |
| U.S. Senators by State | 0 | - | 4.49 | 35,839 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 25,445 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.75 | 19,211 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,798 |
| The John Adams Presidency | 0 | - | 4.10 | 7,914 |
| The Theodore Roosevelt Presidency | 0 | - | 4.30 | 7,093 |
| U.S. Vice Presidential Trivia | 0 | - | 4.29 | 11,224 |
| The Kennedy Family | 0 | - | 3.85 | 13,186 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 59,179 |
| US States Quiz | 0 | - | 5.00 | 14,562,937 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 338,070 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,413 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,594 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 47,998 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,691 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 45,708 |
| Countries of the German Empire | 0 | - | 4.50 | 33,265 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.88 | 50,219 |
| Countries of Iberia in History with a Map | 0 | - | 4.81 | 33,319 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 74,605 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,474 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,835 |
| Prime Ministers of the UK | 0 | - | 4.95 | 377,471 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 59,827 |
| The Persian Gulf War | 0 | - | 3.98 | 7,652 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 66,745 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 87,124 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 76,960 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 66,790 |
| Biggest Trading Partners - Australia | 0 | - | 4.88 | 42,450 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,638 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,467 |
| Pixelated United States Map | 0 | - | 4.91 | 81,236 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 91,893 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,493 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,277 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,566 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 498,054 |
| Presidential Actors | 0 | - | 4.33 | 17,688 |
| The George W. Bush Presidency | 0 | - | 4.06 | 30,820 |
| The George Washington Presidency | 0 | - | 4.02 | 13,566 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.32 | 10,653 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,410 |
| The Barack Obama Presidency | 0 | - | 4.20 | 23,462 |
| California A-Z | 0 | - | 4.48 | 27,733 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.84 | 21,024 |
| American History Quotes #1 | 0 | - | 4.43 | 91,033 |
| U.S. History for Dummies | 0 | - | 4.50 | 64,660 |
| The American Civil War | 0 | - | 4.72 | 48,646 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,322 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 455,689 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 95,007 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 98,013 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,207 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,061 |
| U.S. States By Population | 0 | - | 4.90 | 129,163 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,206 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,443 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,431 |
| US States with an Empty Map | 0 | - | 5.00 | 548,302 |
| 10 Northernmost U.S. States | 0 | - | 4.86 | 59,615 |
| States in a Tank of the U.S. Map | 0 | - | 4.49 | 27,579 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 76,991 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,826 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 54,722 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,836 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,270 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 166,978 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,479 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,319 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,603 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,264 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,823 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 141,423 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,439 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 81,426 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 49,960 |
| Biggest Trading Partners - UK | 0 | - | 4.86 | 56,305 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 70,714 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 69,412 |
| Rivers of the United States | 0 | - | 4.93 | 49,023 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 106,223 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.43 | 68,489 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.67 | 73,101 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.52 | 69,514 |
| Movies with America in the Title | 0 | - | 4.17 | 28,120 |
| Countries Closest to Alaska | 0 | - | 4.92 | 98,046 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.33 | 41,098 |
| History of Florida | 0 | - | 4.44 | 8,667 |
| Hawaiian Islands | 0 | - | 4.85 | 38,237 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,888 |
| Countries Closest to Maine | 0 | - | 4.84 | 58,274 |
| Harvard University | 0 | - | 4.15 | 7,684 |
| History of Texas | 0 | - | 4.41 | 13,415 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 57,606 |
| People on Money - United States | 0 | - | 4.31 | 61,613 |
| American History Quotes #2 | 0 | - | 4.34 | 39,086 |
| U.S. History Groups of Two | 0 | - | 4.27 | 35,108 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.19 | 40,990 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 34,075 |
| U.S. State Flags | 0 | - | 4.87 | 133,995 |
| U.S. States that Border Canada | 0 | - | 4.90 | 164,874 |
| U.S. States with the Most Billionaires | 0 | - | 4.50 | 45,910 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 182,661 |
| Category Elimination - U.S. States #2 | 0 | - | 4.79 | 114,019 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,165 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 50,940 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.42 | 54,476 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,258 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,799 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,270 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,875 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 90,258 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 51,473 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 61,636 |
| U.S. History Multiple Choice #5 | 0 | - | 4.34 | 10,264 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 110,249 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,157 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 47,994 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 30,466 |
| Countries "Ruled" by King Charles III | 0 | - | 4.79 | 80,531 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 52,940 |
| The Vietnam War | 0 | - | 4.41 | 32,546 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 47,855 |
| Random American Countries on a Map | 0 | - | 4.95 | 85,160 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 162,721 |
| Territories of the United States | 0 | - | 4.76 | 48,193 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 158,424 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.38 | 7,839 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,126 |
| Name a Valid Answer - United States #1 | 0 | - | 4.70 | 84,637 |
| U.S. Highway Signs By State | 0 | - | 4.42 | 14,029 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,199 |
