| U.S. Presidents by Picture | 0 | - | 4.87 | 427,245 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,224 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,725 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,520 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,428 |
| Vietnam War Countries | 0 | - | 4.82 | 94,393 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,474 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,643 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,817 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,827 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,654 |
| U.S. Senators by State | 0 | - | 4.44 | 40,016 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,555 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,250 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,812 |
| The American Revolution | 0 | - | 4.52 | 54,296 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,038 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,474 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,065 |
| US States Quiz | 0 | - | 5.00 | 16,928,995 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,907 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,161 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,948 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,961 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,057 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,489 |
| Pixelated United States Map | 0 | - | 4.88 | 94,507 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,020 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,051 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,962 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,710,953 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,987 |
| U.S. President Scramble | 0 | - | 4.40 | 117,156 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,235 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,964 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,433 |
| California A-Z | 0 | - | 4.49 | 28,810 |
| Los Angeles Lakers Trivia | 0 | - | 4.15 | 26,670 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 4.02 | 11,885 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,445 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,322 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,175 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,780 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,718 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,405 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,726 |
| U.S. States By Population | 0 | - | 4.92 | 153,792 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,783 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,622 |
| US States with an Empty Map | 0 | - | 5.00 | 626,346 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,733 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,563 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,352 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,827 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,331 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,976 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,444 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,694 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,469 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,762 |
| The Iraq War | 0 | - | 4.47 | 15,677 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,260 |
| Rivers of the United States | 0 | - | 4.93 | 66,386 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,393 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,757 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,916 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,216 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,463 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,652 |
| Hawaiian Islands | 0 | - | 4.83 | 42,791 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,298 |
| It's Always Sunny in Philadelphia Quiz | 0 | - | 4.34 | 15,879 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,401 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,166 |
| U.S. State Flags | 0 | - | 4.89 | 171,479 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,717 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,897 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,586 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,711 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,376 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,023 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,395 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,989 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,635 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,038 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,269 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,465 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,597 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,784 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,693 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,833 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,067 |
| Territories of the United States | 0 | - | 4.80 | 52,485 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,756 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,748 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,309 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,168 |
| Presidential Actors | 0 | - | 4.36 | 19,203 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,960 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,337 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 24,972 |
| Los Angeles Lakers NBA All-Stars | 0 | - | 3.84 | 9,966 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,869 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,100 |
| New York City Geography | 0 | - | 4.42 | 33,135 |
| Top 15 New York Yankees of All-Time | 0 | - | 4.00 | 25,809 |
| Cleveland Browns QBs Since 1999 | 0 | - | 4.31 | 7,830 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,304 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,546,589 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,082 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,566 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,730 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,944 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,276 |
| Doctor Who Actors | 0 | - | 4.61 | 17,959 |
| The Persian Gulf War | 0 | - | 4.02 | 8,467 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,251 |
| Australian Capitals | 0 | - | 4.92 | 62,771 |
| Australia Map Quiz | 0 | - | 4.95 | 345,353 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,727 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,192 |
| Most Guessed North American Teams by Sport | 0 | - | 4.28 | 64,692 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,533 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,620 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,621 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,270 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,378 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,221 |
| United States Country Quiz | 0 | - | 4.43 | 101,787 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,978 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,740 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,285 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,681 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,929 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,747 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,538 |
| Arms Exports - United States | 0 | - | 4.77 | 62,558 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,271 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,085 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,050 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,563 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,497 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 630,729 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 20,122 |
| The Kennedy Family | 0 | - | 3.90 | 14,084 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,156 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,805 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,063 |
| State Quiz - California | 0 | - | 4.69 | 64,583 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 59,975 |
| State Quiz - Florida | 0 | - | 4.47 | 62,450 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,939 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,475 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,634 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,777 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,452 |
| State Quiz - Kentucky | 0 | - | 4.42 | 32,536 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 56,048 |
| Players With TD Receptions From Tom Brady | 0 | - | 4.18 | 13,530 |
| Tom Brady Quiz | 0 | - | 4.15 | 15,686 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,874 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,276 |
| State Quiz - New York | 0 | - | 4.52 | 46,244 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,411 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,234 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,227 |
| State Quiz - Texas | 0 | - | 4.43 | 62,993 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,471 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,127 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,245 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,381 |
| State Quiz - Washington | 0 | - | 4.45 | 36,519 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,223 |
| The American Civil War | 0 | - | 4.62 | 52,512 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,840 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,494 |
| New England States | 0 | - | 4.51 | 59,844 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,239 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,009 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,394,436 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,917 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,817 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,919 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,608 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,048 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,549 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,255 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,941 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,580 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,686,304 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,141 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 41,019 |
| U.S. States by Borders | 0 | - | 4.61 | 35,390 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 88,023 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,525 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,792 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,185 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,086 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 186,722 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,129 |
