| Deadliest U.S. Wars | 0 | - | 4.89 | 191,357 |
| US States Quiz | 0 | - | 5.00 | 16,932,920 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,417 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,654 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,268 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,788 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,919 |
| US States with an Empty Map | 0 | - | 5.00 | 626,466 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,507 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,627 |
| People on Money - United States | 0 | - | 4.31 | 63,385 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,527 |
| Rivers of the United States | 0 | - | 4.93 | 66,402 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,700 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,330 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,638 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,735 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,398 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,050 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,052 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,482 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,232 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,768 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,935 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,279 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,181 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,968 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,010 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,155 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,971 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,469 |
| Events in U.S. History | 0 | - | 4.41 | 28,734 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,547,118 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,611 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,762 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,958 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,718 |
| Pixelated United States Map | 0 | - | 4.88 | 94,522 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,054 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,077 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,711,837 |
| American Founding Fathers | 0 | - | 4.42 | 23,248 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,147 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,192 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,803 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,741 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,432 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,757 |
| U.S. States By Population | 0 | - | 4.92 | 153,814 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,807 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,638 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,582 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,359 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,844 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,745 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,200 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,356 |
| Names of Generations | 0 | - | 4.09 | 45,271 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,954 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,058 |
| History of Florida | 0 | - | 4.45 | 9,849 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,430 |
| History of Texas | 0 | - | 4.43 | 14,662 |
| American History Quotes #1 | 0 | - | 4.37 | 96,123 |
| American History Quotes #2 | 0 | - | 4.38 | 41,460 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,290 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,394,670 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,686,703 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,010 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,653 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,863 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,848 |
| Flags of North and South America | 0 | - | 4.99 | 374,842 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,344 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,333 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,752 |
| Arms Exports - United States | 0 | - | 4.77 | 62,566 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,118 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,566 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,838 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,311 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,162 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,813 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,068 |
| State Quiz - California | 0 | - | 4.69 | 64,596 |
| State Quiz - Florida | 0 | - | 4.47 | 62,459 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,943 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,490 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,645 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,795 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,455 |
| State Quiz - Kentucky | 0 | - | 4.42 | 32,545 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,881 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,278 |
| State Quiz - New York | 0 | - | 4.52 | 46,250 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,234 |
| State Quiz - Texas | 0 | - | 4.43 | 63,004 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,143 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,250 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,393 |
| State Quiz - Washington | 0 | - | 4.45 | 36,532 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,145 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,847 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,499 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,246 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,015 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,924 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,820 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,615 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,589 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 88,033 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,526 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,196 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,088 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,135 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,867 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,979 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,601 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,690 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,650 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,880 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,366 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,896 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,758 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,023 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,332 |
| Native American Words | 0 | - | 4.26 | 24,793 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,348 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,370 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,333 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,067 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,221 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,531 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,381 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,543 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,300 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,425 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,878 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,837 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,526 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,566 |
| California Groups of Things | 0 | - | 4.25 | 45,611 |
| History of California | 0 | - | 4.40 | 18,771 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,242 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,296 |
| History of Illinois | 0 | - | 4.24 | 11,241 |
| History of Maryland | 0 | - | 4.06 | 6,706 |
| History of Massachusetts | 0 | - | 4.14 | 8,408 |
| History of Michigan | 0 | - | 4.26 | 6,964 |
| New York Groups of Things | 0 | - | 4.37 | 68,615 |
| History of New York | 0 | - | 4.36 | 16,385 |
| History of New Jersey | 0 | - | 4.38 | 7,288 |
| History of Ohio | 0 | - | 4.14 | 7,361 |
| History of Tennessee | 0 | - | 4.29 | 7,676 |
| History of Washington State | 0 | - | 4.27 | 6,890 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,223 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,652 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,472 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,851 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,111 |
| U.S. States by Emoji | 0 | - | 4.48 | 101,122 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,401 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,139 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,794 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,198 |
| U.S. State Shapes Quiz #1 | 0 | - | 4.74 | 153,207 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.80 | 102,200 |
| U.S. States that Start with N - Shape Quiz | 0 | - | 4.67 | 48,731 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,792 |
| The Only American Country ... | 0 | - | 4.92 | 121,889 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,352 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,654 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,625 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,908 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,623 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,672 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,224 |
| United States Country Quiz | 0 | - | 4.43 | 101,817 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,982 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,785 |
| Free in the Answers | 0 | - | 4.08 | 51,645 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,212 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,508 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 21,116 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,063 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,153 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,586 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,078 |
| Washington Cities Map Quiz | 0 | - | 4.48 | 24,086 |
| Washington D.C. Landmarks on a Map | 0 | - | 4.60 | 18,440 |
| Old West History | 0 | - | 4.34 | 15,288 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,962 |
| Regions of U.S. States | 0 | - | 4.37 | 44,026 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,403 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,870 |
| Movies by State | 0 | - | 4.27 | 40,577 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,859 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,910 |
