| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,918 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,712,749 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,434 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,605 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,687 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,307 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,676 |
| U.S. President Scramble | 0 | - | 4.40 | 117,205 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,981 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,924 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,030 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,858 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,236 |
| Presidential Middle Names | 0 | - | 4.41 | 60,503 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,504 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,723 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,526 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,837 |
| Presidents that Beat Thomas Jefferson | 0 | - | 4.49 | 25,007 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,225 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,091 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,260 |
| U.S. Presidents Who Added the Most Territory | 0 | - | 4.66 | 14,162 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,622 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,302 |
| First Ladies of the United States | 0 | - | 4.28 | 85,789 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,257 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,316 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,269 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,342 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,028 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,875 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,441 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,455 |
| Vietnam War Countries | 0 | - | 4.82 | 94,422 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,555 |
| Presidential Actors | 0 | - | 4.36 | 19,209 |
| U.S. Senators by State | 0 | - | 4.44 | 40,020 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,691 |
| The George Washington Presidency | 0 | - | 4.03 | 14,573 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,756 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,694 |
| The John Adams Presidency | 0 | - | 4.12 | 8,766 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,955 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,752 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,719 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,876 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,126 |
| The Kennedy Family | 0 | - | 3.90 | 14,084 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,453 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,277 |
| George Bush... or George Bush | 0 | - | 3.98 | 8,221 |
| The American Revolution | 0 | - | 4.52 | 54,300 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,378 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,119 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 631,261 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,171 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,813 |
| United States Map Quiz | 0 | - | 4.98 | 4,165,218 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,622 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,688 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,404 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,328 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,735 |
| The Iraq War | 0 | - | 4.47 | 15,680 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,843 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,660 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,502 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,323 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,493 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,523 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,855 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,057 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,831 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,253 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,926 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,670 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,201 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,206 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,986 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,694 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,043 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,239 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,980 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,552 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,486 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,093 |
| US States Quiz | 0 | - | 5.00 | 16,936,795 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,985 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,887 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,022 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,265 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,452 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,258 |
| Countries of the German Empire | 0 | - | 4.51 | 38,067 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,401 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,191 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,182 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,280 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,722 |
| Pixelated United States Map | 0 | - | 4.88 | 94,537 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,074 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,095 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,818 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,994 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,121 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,838 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,777 |
| California A-Z | 0 | - | 4.49 | 28,816 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,492 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,243 |
| The Most Recent... United States | 0 | - | 4.46 | 18,520 |
| The American Civil War | 0 | - | 4.62 | 52,533 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,309 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,598 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,357 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,825 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,808 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,453 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,790 |
| U.S. States By Population | 0 | - | 4.92 | 153,827 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,828 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,655 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,942 |
| US States with an Empty Map | 0 | - | 5.00 | 626,596 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,829 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,599 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,373 |
| Draw All US State Borders | 0 | - | 4.99 | 139,166 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,857 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,366 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,992 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,468 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,706 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,488 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,019 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,660 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,798 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 78,873 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,541 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,659 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,756 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,222 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.98 | 54,415 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,386 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,153 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,607 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,825 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,857 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,518 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,948 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,194 |
| The Persian Gulf War | 0 | - | 4.02 | 8,468 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,855 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,644 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 55,005 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,613 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,489 |
| Rivers of the United States | 0 | - | 4.93 | 66,415 |
| Names of Generations | 0 | - | 4.09 | 45,283 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,430 |
| American Founding Fathers | 0 | - | 4.42 | 23,250 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,744 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,052 |
| History of Florida | 0 | - | 4.45 | 9,851 |
| Hawaiian Islands | 0 | - | 4.83 | 42,810 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,352 |
| History of Texas | 0 | - | 4.43 | 14,664 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,418 |
| American History Quotes #1 | 0 | - | 4.37 | 96,126 |
| People on Money - United States | 0 | - | 4.31 | 63,388 |
| American History Quotes #2 | 0 | - | 4.38 | 41,463 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,534 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,150 |
| Events in U.S. History | 0 | - | 4.41 | 28,739 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,148 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,754 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,293 |
| U.S. State Flags | 0 | - | 4.89 | 171,665 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,830 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,501 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,691 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,752 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,419 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,075 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,444 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,060 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,288 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,903 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,296 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,086 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,149 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,087 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,879 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,226 |
| Territories of the United States | 0 | - | 4.80 | 52,498 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,771 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,813 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,344 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,334 |
