| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,540 |
| Vietnam War Countries | 0 | - | 4.82 | 94,500 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,211 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,133 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,972 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,195 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,541 |
| US States Quiz | 0 | - | 5.00 | 16,962,797 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,047 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,293 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,267 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,929 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,346 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,750 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,552,288 |
| The American Revolution | 0 | - | 4.52 | 54,326 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,806 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,396,909 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,029 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,044 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,690 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,053 |
| U.S. States By Population | 0 | - | 4.92 | 153,967 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,999 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,763 |
| US States with an Empty Map | 0 | - | 5.00 | 627,513 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,727 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,451 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,959 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,335 |
| U.S. Senators by State | 0 | - | 4.44 | 40,066 |
| Which City in California? | 0 | - | 4.56 | 32,136 |
| History of Florida | 0 | - | 4.45 | 9,864 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,541 |
| History of Texas | 0 | - | 4.43 | 14,678 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,121 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,952 |
| Draw All US State Borders | 0 | - | 4.99 | 139,914 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,657 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,793 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,901 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,873 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,883 |
| Hawaiian Islands | 0 | - | 4.83 | 42,863 |
| Harvard University | 0 | - | 4.15 | 8,318 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,336 |
| U.S. State Flags | 0 | - | 4.89 | 172,196 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,220 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,306 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,223 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,510 |
| U.S. States Closest to Tokyo | 0 | - | 4.89 | 61,055 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,922 |
| History of California | 0 | - | 4.40 | 18,785 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,126 |
| Which City in Florida? | 0 | - | 4.61 | 11,019 |
| States That Beat Hawaii | 0 | - | 4.55 | 34,360 |
| History of Michigan | 0 | - | 4.26 | 6,974 |
| History of New York | 0 | - | 4.36 | 16,402 |
| Which City in New York State? | 0 | - | 4.60 | 16,035 |
| Which City in Texas? | 0 | - | 4.45 | 25,145 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 42,122 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,170 |
| Random Point on Land to US State | 0 | - | 4.63 | 69,621 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,803 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,074 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,057 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,771 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,669 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,339 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,607 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,164 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,806 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,293 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,808 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,050 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,938 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,218 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,448 |
| States that Beat California | 0 | - | 4.54 | 63,802 |
| The Life of Martin Luther King Jr. | 0 | - | 4.73 | 11,131 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,787 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,597 |
| States that Beat New York | 0 | - | 4.50 | 45,214 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,174 |
| States that Beat Texas | 0 | - | 4.58 | 44,465 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,997 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,093 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,040 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,690,027 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,224 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,087 |
| U.S. States by Borders | 0 | - | 4.61 | 35,432 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,050 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,641 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,265 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,741 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,612 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,593 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,920 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,886 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,573 |
| Name a Valid African Country | 0 | - | 4.98 | 154,802 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,291 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,901 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,330 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,571 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,749 |
| Pixelated United States Map | 0 | - | 4.88 | 94,655 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,277 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,245 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,979 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 633,169 |
| Presidential Actors | 0 | - | 4.36 | 19,226 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 24,030 |
| U.S. President Scramble | 0 | - | 4.40 | 117,346 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,361 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,302 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,034 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.88 | 19,875 |
| States that Beat Alaska | 0 | - | 4.49 | 26,571 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,851 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,120 |
| California A-Z | 0 | - | 4.49 | 28,828 |
| State Quiz - California | 0 | - | 4.69 | 64,682 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 25,027 |
| Los Angeles Lakers Trivia | 0 | - | 4.15 | 26,721 |
| State Quiz - Florida | 0 | - | 4.47 | 62,519 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,972 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,609 |
| States that Beat Florida | 0 | - | 4.32 | 40,951 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,252 |
| History of Illinois | 0 | - | 4.24 | 11,249 |
| History of Maryland | 0 | - | 4.06 | 6,720 |
| History of Massachusetts | 0 | - | 4.14 | 8,419 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,922 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,148 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,325 |
| State Quiz - New York | 0 | - | 4.52 | 46,325 |
| Cities that Beat New York | 0 | - | 4.51 | 28,789 |
| States That Beat Montana | 0 | - | 4.49 | 25,714 |
| History of New Jersey | 0 | - | 4.38 | 7,300 |
| State Quiz - Texas | 0 | - | 4.43 | 63,099 |
| History of Ohio | 0 | - | 4.14 | 7,372 |
| History of Tennessee | 0 | - | 4.29 | 7,684 |
| History of Washington State | 0 | - | 4.27 | 6,899 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,572 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,882 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,528 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,075 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,005 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,848 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,672 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,584 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,300 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,722 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,952 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 88,141 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,544 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,047 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,898 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,049 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,633 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,719 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,674 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,514 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,080 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,568 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,761 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,563 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,289 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,925 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,897 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 79,067 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,810 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,801 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,807 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,259 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,394 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,439 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,578 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,098 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,436 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,029 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,731 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,229 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,935 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,043 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,383 |
| The Iraq War | 0 | - | 4.47 | 15,691 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,964 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,332 |
| Countries that Beat China | 0 | - | 4.85 | 116,518 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,745 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,788 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,578 |
| Rivers of the United States | 0 | - | 4.93 | 66,541 |
| Names of Generations | 0 | - | 4.09 | 45,394 |
