| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,915 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,557 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,161 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,064 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,950 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,521 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,554 |
| Presidential Actors | 0 | - | 4.36 | 19,098 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,688 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 300,634 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,740 |
| Random U.S. Presidents by Picture | 0 | - | 4.39 | 65,947 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,500 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,133 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,122 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,415 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,132 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,482 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,693 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,927 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,097 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,618 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,907 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,294 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,628 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 621,439 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,669,319 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,335 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,841 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,643 |
| US States Quiz | 0 | - | 5.00 | 16,759,143 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,913 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,319 |
| Vietnam War Countries | 0 | - | 4.83 | 93,832 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,894 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,904 |
| Pixelated United States Map | 0 | - | 4.89 | 93,736 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,873 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,153 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,725 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,010 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,393 |
| The Bill Clinton Presidency | 0 | - | 4.22 | 31,387 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,443 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,749 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,111 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,637 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,191 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,543 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,796 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,804 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,197 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,442 |
| U.S. States By Population | 0 | - | 4.92 | 152,681 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,774 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,092 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,971 |
| US States with an Empty Map | 0 | - | 5.00 | 620,779 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,091 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,857 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,935 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,170 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,362 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,265 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,718 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,213 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,860 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,312 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,130 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,062 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,176 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,365 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,781 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,067 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,044 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,796 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,741 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,345 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,434 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,401 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,894 |
| Rivers of the United States | 0 | - | 4.93 | 65,734 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,728 |
| U.S. Senators by State | 0 | - | 4.45 | 39,825 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,268 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,033 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,009 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,653 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,687 |
| Stephen Curry Quiz | 0 | - | 4.36 | 66,544 |
| History of Florida | 0 | - | 4.45 | 9,783 |
| Hawaiian Islands | 0 | - | 4.83 | 42,526 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,160 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,678 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,108 |
| History of Texas | 0 | - | 4.43 | 14,572 |
| LeBron James Trivia | 0 | - | 4.01 | 170,201 |
| LeBron... or Kobe? | 0 | - | 4.04 | 69,447 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,181 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,524,710 |
| U.S. State Flags | 0 | - | 4.89 | 168,384 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,371 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,394 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,293 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,083 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,888 |
| Random U.S. States on a Map | 0 | - | 4.96 | 623,143 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,135 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,986 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,413 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,662 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,821 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,805 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,399 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,405 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,530 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,121 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,753 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,365 |
| Territories of the United States | 0 | - | 4.79 | 52,234 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,506 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,458 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,880 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,116 |
| United States Country Quiz | 0 | - | 4.43 | 100,924 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,901 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,702 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,637 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,418 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,477 |
| American Revolution Decoder | 0 | - | 4.10 | 20,896 |
| History of California | 0 | - | 4.40 | 18,712 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,921 |
| Movies Set in Miami | 0 | - | 4.32 | 16,682 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,192 |
| History of Illinois | 0 | - | 4.24 | 11,191 |
| History of Maryland | 0 | - | 4.06 | 6,664 |
| History of Massachusetts | 0 | - | 4.14 | 8,348 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,751 |
| History of Michigan | 0 | - | 4.26 | 6,914 |
| New York City Geography | 0 | - | 4.42 | 33,004 |
| History of New York | 0 | - | 4.36 | 16,304 |
| History of New Jersey | 0 | - | 4.38 | 7,223 |
| History of Ohio | 0 | - | 4.14 | 7,319 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,533 |
| History of Tennessee | 0 | - | 4.29 | 7,642 |
| History of Washington State | 0 | - | 4.27 | 6,847 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,852 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,384,359 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,719 |
| US States by Borders in 30 Seconds | 0 | - | 4.69 | 2,670,109 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,970 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,330 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,405 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,744 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,011 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,677 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,096 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,858 |
| Biggest British Empire Countries | 0 | - | 4.73 | 99,321 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,122 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,726 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,757 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,991 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,559 |
| Countries of Africa | 0 | - | 5.00 | 2,517,488 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,900 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,139 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,159 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,162 |
| African East Coast | 0 | - | 4.96 | 95,401 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,264 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,693 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,096 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| Australia Map Quiz | 0 | - | 4.94 | 343,060 |
| Flags of North and South America | 0 | - | 4.99 | 369,435 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,935 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,424 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,629 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,908 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,173 |
| Top U.S. Universities | 0 | - | 4.15 | 144,417 |
| Largest United States Airlines | 0 | - | 4.39 | 54,904 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 744,650 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,420 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,173 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,671 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,404 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,559 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,299 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,464 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,944 |
| Arms Exports - United States | 0 | - | 4.75 | 61,559 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,875 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,821 |
| U.S. States by Governor | 0 | - | 4.43 | 18,006 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,410 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,609 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,589 |
