| Deadliest U.S. Wars | 0 | - | 4.89 | 191,979 |
| Battle to Country | 0 | - | 4.91 | 54,111 |
| US States Quiz | 0 | - | 5.00 | 17,022,284 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,007 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,672 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,267 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,363 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,455 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,206 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,391 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,455 |
| US States with an Empty Map | 0 | - | 5.00 | 629,570 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,382 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,594 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 48,721 |
| The American Civil War | 0 | - | 4.62 | 52,657 |
| Rivers of the United States | 0 | - | 4.93 | 66,785 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,183 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,292 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,694 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,857 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,261 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,989 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,654 |
| U.S. States that Border Canada | 0 | - | 4.91 | 187,044 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,535 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,163 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,558,319 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,732 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,814 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,114 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,913 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,159 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,875 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,730,968 |
| People on Money - United States | 0 | - | 4.31 | 63,461 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,627 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,758 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,916 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,714 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,785 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 65,055 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,483 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,103 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,846 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,146 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 58,559 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 750,314 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,606 |
| History of Florida | 0 | - | 4.45 | 9,881 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,560 |
| History of Texas | 0 | - | 4.43 | 14,695 |
| American History Quotes #1 | 0 | - | 4.37 | 96,243 |
| American History Quotes #2 | 0 | - | 4.38 | 41,525 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,358 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,399,948 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,695,698 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,481 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,208 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,384 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,002 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,538 |
| Asian Last Names in the United States | 0 | - | 4.43 | 47,009 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,528 |
| Countries in World War I | 0 | - | 4.88 | 229,441 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,513 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,566 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,414 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,892 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,156 |
| The Vietnam War | 0 | - | 4.44 | 35,689 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,818 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,601 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,824 |
| Arms Exports - United States | 0 | - | 4.77 | 62,803 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,613 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,224 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,577 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,911 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,866 |
| American Founding Fathers | 0 | - | 4.42 | 23,285 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,362 |
| State Quiz - Arizona | 0 | - | 4.44 | 37,013 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,233 |
| State Quiz - California | 0 | - | 4.69 | 64,938 |
| State Quiz - Florida | 0 | - | 4.47 | 62,748 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 61,036 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,845 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 54,063 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,631 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,397 |
| State Quiz - New York | 0 | - | 4.52 | 46,539 |
| State Quiz - Texas | 0 | - | 4.43 | 63,297 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,422 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,580 |
| State Quiz - Washington | 0 | - | 4.45 | 36,715 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,919 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,561 |
| U.S. States by Clue #1 | 0 | - | 4.50 | 44,148 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,190 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,166 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,896 |
| U.S. States with Spanish Names | 0 | - | 4.49 | 88,355 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,576 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,477 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,344 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,980 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,196 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,726 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,557 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,385 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,686 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,741 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,699 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,460 |
| U.S. Geography by Letter - P | 0 | - | 4.40 | 54,612 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,777 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,038 |
| American Political Words | 0 | - | 4.39 | 23,486 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,879 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,749 |
| California Groups of Things | 0 | - | 4.26 | 45,804 |
| History of California | 0 | - | 4.40 | 18,803 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,270 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,328 |
| History of Illinois | 0 | - | 4.24 | 11,261 |
| History of Maryland | 0 | - | 4.06 | 6,741 |
| History of Massachusetts | 0 | - | 4.14 | 8,440 |
| History of Michigan | 0 | - | 4.26 | 6,990 |
| New York Groups of Things | 0 | - | 4.39 | 72,371 |
| History of New York | 0 | - | 4.36 | 16,429 |
| History of New Jersey | 0 | - | 4.38 | 7,316 |
| Famous People from Texas by Picture | 0 | - | 4.00 | 33,479 |
| History of Ohio | 0 | - | 4.14 | 7,389 |
| History of Tennessee | 0 | - | 4.29 | 7,691 |
| History of Washington State | 0 | - | 4.27 | 6,921 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,577 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,713 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,616 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,964 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,148 |
| U.S. States by Emoji | 0 | - | 4.48 | 101,483 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 71,016 |
| U.S. State Shapes Quiz #1 | 0 | - | 4.74 | 153,424 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.80 | 102,340 |
| U.S. States that Start with N - Shape Quiz | 0 | - | 4.67 | 48,858 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,736 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,215 |
| The Iraq War | 0 | - | 4.47 | 15,719 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,959 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,968 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,058 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,018 |
| Free in the Answers | 0 | - | 4.08 | 51,756 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,241 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,195 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 21,173 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,080 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,191 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,688 |
| Washington Cities Map Quiz | 0 | - | 4.48 | 24,124 |
| Washington D.C. Landmarks on a Map | 0 | - | 4.60 | 18,507 |
| Regions of U.S. States | 0 | - | 4.37 | 44,254 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,430 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,949 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,885 |
| Movies by State | 0 | - | 4.27 | 40,620 |
| U.S. States with the Fewest Traffic Fatalities | 0 | - | 4.20 | 21,213 |
| U.S. States with the Most Traffic Fatalities | 0 | - | 4.10 | 19,220 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,901 |
| Monarchies of Europe | 0 | - | 4.90 | 99,031 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,551 |
| Monarchies of Asia | 0 | - | 4.97 | 71,606 |
| Countries in World War II | 0 | - | 4.54 | 920,295 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,701 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,828 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,136 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,488 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,674 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,949 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,196 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,235 |
| U.S. Geography by Letter - F | 0 | - | 3.85 | 45,518 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,980 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,726 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,868 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 37,072 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,802 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,826 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,867 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,054 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,184 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,043 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,594 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,234 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,555 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,744 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,980 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,612 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,025 |
