| Deadliest U.S. Wars | 0 | - | 4.89 | 190,998 |
| Battle to Country | 0 | - | 4.91 | 53,480 |
| US States Quiz | 0 | - | 5.00 | 16,906,486 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,233 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,868 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,970 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,338 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,215 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,856 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,620 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,783 |
| US States with an Empty Map | 0 | - | 5.00 | 625,646 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,290 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,418 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,107 |
| The American Civil War | 0 | - | 4.62 | 52,477 |
| Rivers of the United States | 0 | - | 4.93 | 66,290 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,021 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,512 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,225 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,335 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,619 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,274 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,418 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,389 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,206 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,923 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,543,414 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,175 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 134,502 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 51,809 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,704 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,098 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,827 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,705,815 |
| People on Money - United States | 0 | - | 4.31 | 63,364 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,495 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,575 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,479 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,566 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,663 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,827 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,340 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,833 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,729 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,486 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,917 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,789 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,948 |
| History of Florida | 0 | - | 4.45 | 9,839 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,384 |
| History of Texas | 0 | - | 4.43 | 14,646 |
| American History Quotes #1 | 0 | - | 4.37 | 96,081 |
| American History Quotes #2 | 0 | - | 4.38 | 41,434 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,268 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,393,238 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,684,407 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,372 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,124 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,157 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,608 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,399 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,820 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,287 |
| Countries in World War I | 0 | - | 4.88 | 228,388 |
| United States Map Quiz | 0 | - | 4.98 | 4,162,408 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,439 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,265 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,832 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,023 |
| The Vietnam War | 0 | - | 4.44 | 35,566 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,640 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,387 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,306 |
| Arms Exports - United States | 0 | - | 4.77 | 62,490 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,551 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,178 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,539 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,874 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,900 |
| American Founding Fathers | 0 | - | 4.42 | 23,234 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,124 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,766 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,022 |
| State Quiz - California | 0 | - | 4.69 | 64,517 |
| State Quiz - Florida | 0 | - | 4.47 | 62,406 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,923 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,392 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,721 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,425 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,257 |
| State Quiz - New York | 0 | - | 4.52 | 46,196 |
| State Quiz - Texas | 0 | - | 4.43 | 62,941 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,089 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,353 |
| State Quiz - Washington | 0 | - | 4.45 | 36,481 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,816 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,480 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,181 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,977 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,863 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,796 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,960 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,511 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,115 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,082 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,833 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,900 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,631 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,956 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,322 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,141 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,157 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,147 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,843 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,980 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,364 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,785 |
| American Political Words | 0 | - | 4.39 | 23,435 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,181 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,513 |
| California Groups of Things | 0 | - | 4.25 | 45,515 |
| History of California | 0 | - | 4.40 | 18,766 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,237 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,291 |
| History of Illinois | 0 | - | 4.24 | 11,232 |
| History of Maryland | 0 | - | 4.06 | 6,699 |
| History of Massachusetts | 0 | - | 4.14 | 8,400 |
| History of Michigan | 0 | - | 4.26 | 6,954 |
| New York Groups of Things | 0 | - | 4.35 | 63,877 |
| History of New York | 0 | - | 4.36 | 16,372 |
| History of New Jersey | 0 | - | 4.38 | 7,273 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,391 |
| History of Ohio | 0 | - | 4.14 | 7,357 |
| History of Tennessee | 0 | - | 4.29 | 7,671 |
| History of Washington State | 0 | - | 4.27 | 6,884 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,159 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,635 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,438 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,821 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,099 |
| U.S. States by Emoji | 0 | - | 4.48 | 101,037 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,731 |
| U.S. State Shapes Quiz #1 | 0 | - | 4.74 | 153,144 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.80 | 102,149 |
| U.S. States that Start with N - Shape Quiz | 0 | - | 4.67 | 48,694 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,534 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,010 |
| The Iraq War | 0 | - | 4.47 | 15,669 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,574 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,674 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,575 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,460 |
| Free in the Answers | 0 | - | 4.08 | 51,605 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,206 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,308 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 21,106 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,061 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,142 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,555 |
| Washington Cities Map Quiz | 0 | - | 4.48 | 24,073 |
| Washington D.C. Landmarks on a Map | 0 | - | 4.60 | 18,419 |
| Regions of U.S. States | 0 | - | 4.37 | 43,956 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,399 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,852 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,448 |
| Movies by State | 0 | - | 4.27 | 40,559 |
| U.S. States with the Fewest Traffic Fatalities | 0 | - | 4.20 | 21,158 |
| U.S. States with the Most Traffic Fatalities | 0 | - | 4.10 | 19,158 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,322 |
| Monarchies of Europe | 0 | - | 4.90 | 98,290 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,649 |
| Monarchies of Asia | 0 | - | 4.97 | 71,178 |
| Countries in World War II | 0 | - | 4.54 | 914,233 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,033 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,380 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,388 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,750 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,317 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,327 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,784 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,813 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,076 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,535 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,201 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,369 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 31,076 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,219 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,500 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,635 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,784 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,485 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,435 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,063 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,493 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,812 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,761 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,799 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,991 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,627 |
