| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,759 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,253 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,410 |
| Vietnam War Countries | 0 | - | 4.82 | 94,208 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 627,425 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,697,788 |
| U.S. Senators by State | 0 | - | 4.44 | 39,954 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,288 |
| Random U.S. States on a Map | 0 | - | 4.96 | 626,327 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,735 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,509 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,323 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,188 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,953 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,917 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,999 |
| US States Quiz | 0 | - | 5.00 | 16,870,899 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,754 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 134,168 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,989 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,910 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,571 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,586 |
| The American Revolution | 0 | - | 4.52 | 54,252 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,846 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,392 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,411 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,970 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,251 |
| U.S. States By Population | 0 | - | 4.92 | 153,524 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,424 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,430 |
| US States with an Empty Map | 0 | - | 5.00 | 624,434 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,280 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,202 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,601 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,724 |
| Presidential Actors | 0 | - | 4.36 | 19,171 |
| U.S. President Scramble | 0 | - | 4.40 | 116,762 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,460 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,575 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,844 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,422 |
| Draw All US State Borders | 0 | - | 4.99 | 137,467 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,978 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,998 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,161 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,090 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,531 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,319 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,351 |
| U.S. State Flags | 0 | - | 4.89 | 170,364 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,857 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,457 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,608 |
| U.S. States Closest to Tokyo | 0 | - | 4.89 | 60,449 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,724 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,086 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,709 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,465 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,782 |
| Presidential Middle Names | 0 | - | 4.41 | 60,234 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,191 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,324 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,592 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,982 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,428 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,185 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,838 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,884 |
| California A-Z | 0 | - | 4.49 | 28,788 |
| California... or Florida? | 0 | - | 4.60 | 51,344 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,538,504 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,423 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,375 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,077 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,949 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,650 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,762 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,157 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,349 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,527 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,247 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,588 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,471 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,932 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,438 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,618 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,457 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,465 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,962 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,869 |
| History of Florida | 0 | - | 4.45 | 9,824 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,104 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,000 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,211 |
| History of Texas | 0 | - | 4.43 | 14,624 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,928 |
| New England States | 0 | - | 4.51 | 59,807 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,391,249 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,804 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,007 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,809 |
| US States by Borders in 30 Seconds | 0 | - | 4.67 | 2,680,679 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,995 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,920 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,364 |
| U.S. States by Borders | 0 | - | 4.61 | 35,310 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 185,694 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,479 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,035 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,594 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,965 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,209 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,251 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,559 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,166 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,893 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,148 |
| Pixelated United States Map | 0 | - | 4.87 | 94,253 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,646 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,754 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,422 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,415 |
| Arms Exports - United States | 0 | - | 4.75 | 62,401 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,529 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,247 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,256 |
| First Ladies of the United States | 0 | - | 4.28 | 85,631 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,225 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,091 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,057 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,189 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,964 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,395 |
| The Kennedy Family | 0 | - | 3.90 | 14,071 |
| History of California | 0 | - | 4.40 | 18,755 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,223 |
| History of Illinois | 0 | - | 4.24 | 11,219 |
| History of Maryland | 0 | - | 4.06 | 6,689 |
| History of Massachusetts | 0 | - | 4.14 | 8,391 |
| History of Michigan | 0 | - | 4.26 | 6,943 |
| New York City A-Z | 0 | - | 4.18 | 32,297 |
| History of New York | 0 | - | 4.36 | 16,352 |
| History of New Jersey | 0 | - | 4.38 | 7,260 |
| History of Ohio | 0 | - | 4.14 | 7,343 |
| History of Tennessee | 0 | - | 4.29 | 7,661 |
| History of Washington State | 0 | - | 4.27 | 6,877 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,766 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,795 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,460 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,091 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,921 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,958 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,787 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,747 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,502 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,479 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,184 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,113 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,502 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,245 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,854 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.30 | 44,526 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,492 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,375 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,002 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,027 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,794 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,811 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,523 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,629 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,948 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,691 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,167 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,493 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,208 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,750 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,460 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,500 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,827 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,361 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,747 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,524 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,384 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,859 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,879 |
| The Iraq War | 0 | - | 4.47 | 15,653 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,651 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,233 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,260 |
| Rivers of the United States | 0 | - | 4.93 | 66,185 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,146 |
| Mayors of New York City | 0 | - | 3.96 | 12,214 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,497 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,687 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,634 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,136 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,729 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,649 |
