| Deadliest U.S. Wars | 0 | - | 4.89 | 189,652 |
| Battle to Country | 0 | - | 4.91 | 52,820 |
| US States Quiz | 0 | - | 5.00 | 16,763,050 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,154 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,005 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,667 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,313 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,912 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,400 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,747 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,992 |
| US States with an Empty Map | 0 | - | 5.00 | 620,891 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,199 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,388 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,799 |
| The American Civil War | 0 | - | 4.62 | 52,252 |
| Rivers of the United States | 0 | - | 4.93 | 65,752 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,826 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,707 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,697 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,422 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,907 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,436 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,119 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,434 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,828 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,646 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,525,109 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,344 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,118 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,456 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,467 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,946 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,693 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,670,266 |
| People on Money - United States | 0 | - | 4.31 | 63,252 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,323 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,308 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,518 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,356 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,531 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,572 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,172 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,541 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,617 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,945 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,429 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 744,809 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,351 |
| History of Florida | 0 | - | 4.45 | 9,786 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,236 |
| History of Texas | 0 | - | 4.43 | 14,575 |
| American History Quotes #1 | 0 | - | 4.37 | 95,773 |
| American History Quotes #2 | 0 | - | 4.38 | 41,262 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,130 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,384,523 |
| US States by Borders in 30 Seconds | 0 | - | 4.69 | 2,670,462 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,256 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 37,012 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,678 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,241 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,211 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,585 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,068 |
| Countries in World War I | 0 | - | 4.88 | 227,258 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,007 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,264 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,101 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,771 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,882 |
| The Vietnam War | 0 | - | 4.43 | 35,377 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,436 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,085 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,733 |
| Arms Exports - United States | 0 | - | 4.75 | 61,680 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,413 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,104 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,482 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,827 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,710 |
| American Founding Fathers | 0 | - | 4.42 | 23,096 |
| State Quiz - Alaska | 0 | - | 4.42 | 41,888 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,582 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,756 |
| State Quiz - California | 0 | - | 4.68 | 64,144 |
| State Quiz - Florida | 0 | - | 4.47 | 62,093 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,728 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,664 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 53,364 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,241 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,100 |
| State Quiz - New York | 0 | - | 4.52 | 45,886 |
| State Quiz - Texas | 0 | - | 4.43 | 62,654 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 48,776 |
| State Quiz - Virginia | 0 | - | 4.52 | 40,140 |
| State Quiz - Washington | 0 | - | 4.45 | 36,257 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,719 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,374 |
| U.S. States by Clue #1 | 0 | - | 4.50 | 38,780 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,743 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,557 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 46,669 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,535 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,443 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,658 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,818 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,668 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,548 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,502 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,210 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,259 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,711 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,672 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,669 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,338 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,783 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,930 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,506 |
| American Political Words | 0 | - | 4.39 | 23,373 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,201 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,259 |
| California Groups of Things | 0 | - | 4.25 | 45,330 |
| History of California | 0 | - | 4.40 | 18,712 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,192 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,220 |
| History of Illinois | 0 | - | 4.24 | 11,191 |
| History of Maryland | 0 | - | 4.06 | 6,665 |
| History of Massachusetts | 0 | - | 4.14 | 8,351 |
| History of Michigan | 0 | - | 4.26 | 6,917 |
| New York Groups of Things | 0 | - | 4.38 | 60,012 |
| History of New York | 0 | - | 4.36 | 16,305 |
| History of New Jersey | 0 | - | 4.38 | 7,224 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,303 |
| History of Ohio | 0 | - | 4.14 | 7,319 |
| History of Tennessee | 0 | - | 4.29 | 7,642 |
| History of Washington State | 0 | - | 4.27 | 6,848 |
| U.S. History A-Z #1 | 0 | - | 4.35 | 29,726 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,541 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,213 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,682 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,026 |
| U.S. States by Emoji | 0 | - | 4.48 | 100,409 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,429 |
| U.S. State Shapes Quiz #1 | 0 | - | 4.74 | 152,679 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.80 | 101,903 |
| U.S. States that Start with N - Shape Quiz | 0 | - | 4.67 | 48,512 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,159 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,806 |
| The Iraq War | 0 | - | 4.47 | 15,587 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,154 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,719 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,110 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,515 |
| Free in the Answers | 0 | - | 4.11 | 51,339 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,162 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,368 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 20,960 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,032 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,109 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,356 |
| Washington Cities Map Quiz | 0 | - | 4.48 | 24,043 |
| Washington D.C. Landmarks on a Map | 0 | - | 4.60 | 18,311 |
| Regions of U.S. States | 0 | - | 4.37 | 43,618 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,353 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,742 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,976 |
| Movies by State | 0 | - | 4.27 | 40,483 |
| U.S. States with the Fewest Traffic Fatalities | 0 | - | 4.20 | 21,092 |
| U.S. States with the Most Traffic Fatalities | 0 | - | 4.10 | 19,077 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,516 |
| Monarchies of Europe | 0 | - | 4.90 | 97,620 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,419 |
| Monarchies of Asia | 0 | - | 4.97 | 70,778 |
| Countries in World War II | 0 | - | 4.54 | 907,656 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,229 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,905 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,447 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,690 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,303 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,374 |
| U.S. Geography by Letter - N | 0 | - | 3.79 | 52,470 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,473 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 44,736 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,092 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,775 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 38,911 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 30,596 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,697 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,150 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,363 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,475 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,729 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,783 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,496 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,633 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,948 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,651 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,960 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,154 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,987 |
