| U.S. Presidents Quiz | 0 | - | 5.00 | 3,136,892 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 165,256 |
| U.S. Vice Presidents | 0 | - | 4.42 | 118,170 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,196 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 80,543 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,276 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,477 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,422 |
| Name a Valid U.S. President #2 | 0 | - | 4.53 | 58,634 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 351,018 |
| Governors Who Ran For President | 0 | - | 4.46 | 18,836 |
| U.S. Presidents by Event | 0 | - | 4.57 | 28,913 |
| First Ladies of the United States | 0 | - | 4.27 | 79,467 |
| Presidential Middle Names | 0 | - | 4.36 | 55,904 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,766 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 62,690 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,050 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.62 | 13,745 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 21,768 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,434 |
| U.S. Presidents Who Died in Office | 0 | - | 4.73 | 31,046 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 392,023 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 44,909 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 25,483 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,808 |
| The John Adams Presidency | 0 | - | 4.10 | 7,921 |
| The Theodore Roosevelt Presidency | 0 | - | 4.30 | 7,101 |
| U.S. Vice Presidential Trivia | 0 | - | 4.29 | 11,247 |
| Play-Doh Presidents | 0 | - | 5.00 | 73,915 |
| The George Washington Presidency | 0 | - | 4.02 | 13,577 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.32 | 10,659 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.31 | 16,727 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,431 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 276,392 |
| U.S. President Scramble | 0 | - | 4.39 | 90,247 |
| U.S. Presidents True or False | 0 | - | 3.94 | 14,548 |
| The Kennedy Family | 0 | - | 3.85 | 13,196 |
| U.S. Senators by State | 0 | - | 4.49 | 35,883 |
| Vietnam War Countries | 0 | - | 4.80 | 85,509 |
| U.S. Presidential Quotes | 0 | - | 4.35 | 42,605 |
| The John F. Kennedy Presidency | 0 | - | 4.45 | 40,786 |
| The American Revolution | 0 | - | 4.55 | 51,476 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,942 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 121,997 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.87 | 50,604 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 499,305 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.75 | 19,217 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 37,315 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.46 | 20,720 |
| Six Flags Over Texas | 0 | - | 4.84 | 58,432 |
| The Iraq War | 0 | - | 4.43 | 14,275 |
| United States Map Quiz | 0 | - | 4.98 | 3,882,672 |
| The George W. Bush Presidency | 0 | - | 4.06 | 30,832 |
| Random U.S. Presidents by Picture | 0 | - | 4.37 | 58,923 |
| The Barack Obama Presidency | 0 | - | 4.17 | 23,480 |
| Harvard University | 0 | - | 4.15 | 7,692 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,669 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 99,234 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 106,063 |
| Rust Belt Cities Map Quiz | 0 | - | 4.56 | 31,938 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.43 | 68,565 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.67 | 73,182 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.52 | 69,588 |
| Presidential Actors | 0 | - | 4.33 | 17,700 |
| The Bill Clinton Presidency | 0 | - | 4.18 | 30,094 |
| The George H. W. Bush Presidency | 0 | - | 4.35 | 20,486 |
| The Ronald Reagan Presidency | 0 | - | 4.25 | 23,532 |
| The Richard Nixon Presidency | 0 | - | 4.10 | 20,735 |
| The Jimmy Carter Presidency | 0 | - | 4.39 | 17,973 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.91 | 47,864 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,829 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 73,943 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,954 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,501 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 54,109 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,468 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,459 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,633 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,502 |
| Total United States Immigration by Country | 0 | - | 4.90 | 95,928 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,671 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 145,213 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 182,206 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,295 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 29,858 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 59,282 |
| US States Quiz | 0 | - | 5.00 | 14,583,867 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 338,370 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,569 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,737 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 48,147 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,834 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 45,790 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 124,885 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.88 | 50,308 |
| Countries of Iberia in History with a Map | 0 | - | 4.81 | 33,386 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 74,707 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,562 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,990 |
| Vatican City Country Quiz | 0 | - | 4.49 | 38,527 |
| Most-Visited Countries by Popes | 0 | - | 4.67 | 62,429 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 59,917 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 66,794 |
| Countries Bordering China Since 1914 | 0 | - | 4.91 | 87,168 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 77,066 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 66,841 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,687 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,964 |
| Pixelated United States Map | 0 | - | 4.91 | 81,332 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 92,059 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,649 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,416 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,807 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,213 |
| George Bush... or George Bush | 0 | - | 3.89 | 7,690 |
| American Revolution Decoder | 0 | - | 4.12 | 19,931 |
| California A-Z | 0 | - | 4.48 | 27,738 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.84 | 21,084 |
| U.S. History for Dummies | 0 | - | 4.50 | 64,768 |
| The American Civil War | 0 | - | 4.72 | 48,687 |
| U.S. Civil War Decoder | 0 | - | 4.16 | 23,962 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,450 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 456,079 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 95,139 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 98,234 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,384 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,228 |
| U.S. States By Population | 0 | - | 4.90 | 129,242 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,396 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,523 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,518 |
| US States with an Empty Map | 0 | - | 5.00 | 548,940 |
| 10 Northernmost U.S. States | 0 | - | 4.87 | 70,517 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 77,092 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,891 |
| Draw All US State Borders | 0 | - | 4.99 | 91,240 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 55,143 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,943 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,504 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 167,258 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,633 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,567 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,747 |
| Merged U.S. States | 0 | - | 4.38 | 40,030 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,370 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,958 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 141,510 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,565 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 81,496 |
| Ultimate Harry Potter Name Game | 0 | - | 4.95 | 461,864 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 70,803 |
| South America Flags Map Quiz | 0 | - | 4.95 | 69,466 |
| Rivers of the United States | 0 | - | 4.93 | 49,093 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 106,336 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.31 | 10,271 |
| Countries Closest to Alaska | 0 | - | 4.92 | 98,197 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.33 | 41,176 |
| History of Florida | 0 | - | 4.44 | 8,672 |
| Hawaiian Islands | 0 | - | 4.85 | 38,266 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,901 |
| Countries Closest to Maine | 0 | - | 4.84 | 58,351 |
| New York Yankees Trivia | 0 | - | 4.36 | 5,856 |
| Las Vegas Casinos Quiz | 0 | - | 4.06 | 31,453 |
| History of Texas | 0 | - | 4.41 | 13,426 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 57,634 |
| American History Quotes #1 | 0 | - | 4.40 | 91,090 |
| People on Money - United States | 0 | - | 4.31 | 61,634 |
| American History Quotes #2 | 0 | - | 4.34 | 39,108 |
| U.S. History Groups of Two | 0 | - | 4.27 | 35,134 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.19 | 41,030 |
| Last Names in U.S. History #1 | 0 | - | 4.24 | 34,107 |
| U.S. State Flags | 0 | - | 4.87 | 134,246 |
| U.S. States that Border Canada | 0 | - | 4.90 | 165,017 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 183,121 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,253 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 51,061 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,351 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,916 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,391 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,907 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 90,556 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 51,534 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 130,135 |
| U.S. History Multiple Choice #5 | 0 | - | 4.34 | 10,279 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 110,381 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,651 |
| Groups of Things - Harry Potter | 0 | - | 4.85 | 258,924 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 30,506 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 52,994 |
| The Persian Gulf War | 0 | - | 3.98 | 7,656 |
| The Vietnam War | 0 | - | 4.41 | 32,570 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 97,764 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 47,924 |
| Random American Countries on a Map | 0 | - | 4.95 | 85,269 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 162,829 |
| Territories of the United States | 0 | - | 4.76 | 48,247 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 158,541 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.38 | 7,848 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,154 |
| Name a Valid Answer - United States #1 | 0 | - | 4.70 | 84,747 |
