| U.S. Presidents Quiz | 0 | - | 5.00 | 3,131,255 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 164,686 |
| U.S. Vice Presidents | 0 | - | 4.42 | 117,934 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,050 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 80,415 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,191 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,380 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,393 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 51,484 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 350,639 |
| Governors Who Ran For President | 0 | - | 4.46 | 18,825 |
| U.S. Presidents by Event | 0 | - | 4.57 | 28,872 |
| First Ladies of the United States | 0 | - | 4.27 | 79,406 |
| Presidential Middle Names | 0 | - | 4.36 | 55,858 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,745 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 62,466 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,011 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.62 | 13,714 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 21,751 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,414 |
| U.S. Presidents Who Died in Office | 0 | - | 4.72 | 31,015 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 391,550 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 44,883 |
| The George Washington Presidency | 0 | - | 4.02 | 13,566 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 25,442 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,798 |
| The John Adams Presidency | 0 | - | 4.10 | 7,913 |
| The Theodore Roosevelt Presidency | 0 | - | 4.30 | 7,093 |
| U.S. Vice Presidential Trivia | 0 | - | 4.29 | 11,219 |
| Play-Doh Presidents | 0 | - | 5.00 | 73,764 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.32 | 10,653 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.31 | 16,712 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,406 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 275,680 |
| U.S. President Scramble | 0 | - | 4.39 | 90,102 |
| U.S. Presidents True or False | 0 | - | 3.94 | 14,539 |
| The Kennedy Family | 0 | - | 3.85 | 13,184 |
| U.S. Senators by State | 0 | - | 4.49 | 35,832 |
| Vietnam War Countries | 0 | - | 4.80 | 85,444 |
| U.S. Presidential Quotes | 0 | - | 4.35 | 42,588 |
| The John F. Kennedy Presidency | 0 | - | 4.45 | 40,754 |
| The American Revolution | 0 | - | 4.55 | 51,450 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,750 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 121,935 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.87 | 50,533 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 497,820 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.75 | 19,210 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 37,271 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.46 | 20,679 |
| Six Flags Over Texas | 0 | - | 4.84 | 58,379 |
| The Iraq War | 0 | - | 4.43 | 14,256 |
| United States Map Quiz | 0 | - | 4.98 | 3,879,394 |
| The George W. Bush Presidency | 0 | - | 4.06 | 30,818 |
| Random U.S. Presidents by Picture | 0 | - | 4.37 | 57,595 |
| The Barack Obama Presidency | 0 | - | 4.20 | 23,462 |
| Harvard University | 0 | - | 4.15 | 7,682 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,540 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 99,182 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 106,005 |
| Rust Belt Cities Map Quiz | 0 | - | 4.56 | 31,894 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.43 | 68,475 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.67 | 73,086 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.52 | 69,509 |
| Presidential Actors | 0 | - | 4.33 | 17,686 |
| The Bill Clinton Presidency | 0 | - | 4.18 | 30,081 |
| The George H. W. Bush Presidency | 0 | - | 4.35 | 20,474 |
| The Ronald Reagan Presidency | 0 | - | 4.25 | 23,521 |
| The Richard Nixon Presidency | 0 | - | 4.10 | 20,721 |
| The Jimmy Carter Presidency | 0 | - | 4.39 | 17,959 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 47,633 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,415 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 73,877 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,789 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,212 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.83 | 54,001 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,313 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,384 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,431 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,372 |
| Total United States Immigration by Country | 0 | - | 4.89 | 95,807 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,569 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 145,007 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 181,776 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,216 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 29,809 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 59,149 |
| US States Quiz | 0 | - | 5.00 | 14,558,007 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 338,018 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,376 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,564 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 47,974 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,666 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 45,686 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 124,667 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.88 | 50,205 |
| Countries of Iberia in History with a Map | 0 | - | 4.81 | 33,312 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 74,585 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,449 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,797 |
| Vatican City Country Quiz | 0 | - | 4.48 | 38,424 |
| Most-Visited Countries by Popes | 0 | - | 4.67 | 62,212 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 59,813 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 66,739 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 87,113 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 76,948 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 66,779 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,628 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,304 |
| Pixelated United States Map | 0 | - | 4.91 | 81,203 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 91,869 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,466 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,255 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,499 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,197 |
| George Bush... or George Bush | 0 | - | 3.89 | 7,686 |
| American Revolution Decoder | 0 | - | 4.12 | 19,912 |
| California A-Z | 0 | - | 4.48 | 27,731 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.84 | 21,008 |
| American History Quotes #1 | 0 | - | 4.43 | 91,023 |
| U.S. History for Dummies | 0 | - | 4.50 | 64,648 |
| The American Civil War | 0 | - | 4.72 | 48,635 |
| U.S. Civil War Decoder | 0 | - | 4.16 | 23,948 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,306 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 455,601 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 94,978 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 97,989 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,180 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,029 |
| U.S. States By Population | 0 | - | 4.90 | 129,140 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,178 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,420 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,404 |
| US States with an Empty Map | 0 | - | 5.00 | 548,178 |
| 10 Northernmost U.S. States | 0 | - | 4.86 | 59,607 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 76,969 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,815 |
| Draw All US State Borders | 0 | - | 4.99 | 90,896 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 54,583 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,808 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,238 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 166,856 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,470 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,305 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,587 |
| Merged U.S. States | 0 | - | 4.38 | 39,988 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,237 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,794 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 141,403 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,416 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 81,415 |
| Ultimate Harry Potter Name Game | 0 | - | 4.95 | 461,544 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 70,698 |
| South America Flags Map Quiz | 0 | - | 4.95 | 69,251 |
| Rivers of the United States | 0 | - | 4.93 | 48,998 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 106,199 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.31 | 10,256 |
| Countries Closest to Alaska | 0 | - | 4.92 | 98,021 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.33 | 41,083 |
| History of Florida | 0 | - | 4.44 | 8,666 |
| Hawaiian Islands | 0 | - | 4.85 | 38,230 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,882 |
| Countries Closest to Maine | 0 | - | 4.84 | 58,256 |
| New York Yankees Trivia | 0 | - | 4.36 | 5,833 |
| Las Vegas Casinos Quiz | 0 | - | 4.06 | 31,439 |
| History of Texas | 0 | - | 4.41 | 13,414 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 57,599 |
| People on Money - United States | 0 | - | 4.31 | 61,607 |
| American History Quotes #2 | 0 | - | 4.33 | 39,083 |
| U.S. History Groups of Two | 0 | - | 4.27 | 35,102 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.19 | 40,984 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 34,072 |
| U.S. State Flags | 0 | - | 4.87 | 133,938 |
| U.S. States that Border Canada | 0 | - | 4.90 | 164,850 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 182,368 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,138 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 50,910 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,246 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,775 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,254 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,871 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 90,245 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 51,464 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 129,962 |
| U.S. History Multiple Choice #5 | 0 | - | 4.34 | 10,259 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 110,223 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,071 |
| Groups of Things - Harry Potter | 0 | - | 4.85 | 258,657 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 30,459 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 52,931 |
| The Persian Gulf War | 0 | - | 3.98 | 7,650 |
| The Vietnam War | 0 | - | 4.41 | 32,537 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 97,670 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 47,841 |
| Random American Countries on a Map | 0 | - | 4.95 | 85,135 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 162,703 |
| Territories of the United States | 0 | - | 4.76 | 48,182 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 158,397 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.38 | 7,838 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,115 |
| Name a Valid Answer - United States #1 | 0 | - | 4.70 | 84,613 |
