| U.S. Presidents by Picture | 0 | - | 4.87 | 424,670 |
| Random U.S. States on a Map | 0 | - | 4.96 | 623,174 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,498 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,859 |
| Vietnam War Countries | 0 | - | 4.83 | 93,839 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,851 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,140 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,702 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,501 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,100 |
| U.S. Senators by State | 0 | - | 4.45 | 39,825 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,979 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,616 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,557 |
| The American Revolution | 0 | - | 4.52 | 54,126 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 46,651 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,350 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,644 |
| US States Quiz | 0 | - | 5.00 | 16,760,617 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,926 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,489 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,936 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,631 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,933 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,322 |
| Pixelated United States Map | 0 | - | 4.89 | 93,738 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,885 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,163 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,632 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,669,723 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,854 |
| U.S. President Scramble | 0 | - | 4.40 | 116,402 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,072 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,758 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,299 |
| California A-Z | 0 | - | 4.49 | 28,737 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,843 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,644 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,212 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,809 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,810 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,214 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,455 |
| U.S. States By Population | 0 | - | 4.92 | 152,688 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,786 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,096 |
| US States with an Empty Map | 0 | - | 5.00 | 620,828 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,104 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,870 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,938 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,182 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,379 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,277 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,738 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,222 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,880 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,079 |
| The Iraq War | 0 | - | 4.47 | 15,584 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,907 |
| Rivers of the United States | 0 | - | 4.93 | 65,738 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,730 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,729 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,022 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,118 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,170 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,695 |
| Hawaiian Islands | 0 | - | 4.83 | 42,527 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,684 |
| It's Always Sunny in Philadelphia Quiz | 0 | - | 4.34 | 15,798 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,186 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,597 |
| U.S. State Flags | 0 | - | 4.89 | 168,415 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,392 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,980 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,408 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,894 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,143 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,990 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,421 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,322 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,134 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,664 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,826 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,186 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,371 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,045 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,596 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,936 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,780 |
| Territories of the United States | 0 | - | 4.79 | 52,235 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,460 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,889 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,903 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,647 |
| Presidential Actors | 0 | - | 4.36 | 19,101 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,923 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,258 |
| Golden State Warriors Trivia | 0 | - | 4.23 | 24,774 |
| Los Angeles Lakers NBA All-Stars | 0 | - | 3.84 | 9,608 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 4.00 | 11,824 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,675 |
| Boston Celtics Trivia | 0 | - | 4.12 | 14,836 |
| New York City Geography | 0 | - | 4.42 | 33,005 |
| Top 15 New York Yankees of All-Time | 0 | - | 4.00 | 25,695 |
| Cleveland Browns QBs Since 1999 | 0 | - | 4.31 | 7,735 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,214 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,524,868 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,723 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,310 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,100 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,407 |
| Doctor Who Actors | 0 | - | 4.61 | 17,875 |
| The Persian Gulf War | 0 | - | 4.02 | 8,420 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,560 |
| Countries of Africa | 0 | - | 5.00 | 2,517,720 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,223 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,171 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,725 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| Australia Map Quiz | 0 | - | 4.94 | 343,066 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,939 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,426 |
| Most Guessed North American Teams by Sport | 0 | - | 4.28 | 64,028 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,176 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,367 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,507 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 744,723 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,175 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,117 |
| United States Country Quiz | 0 | - | 4.43 | 100,933 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,703 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,671 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,422 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,559 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,316 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,466 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,418 |
| Arms Exports - United States | 0 | - | 4.75 | 61,608 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,877 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,876 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,822 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,410 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 621,497 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 19,976 |
| The Kennedy Family | 0 | - | 3.90 | 14,044 |
| State Quiz - Alaska | 0 | - | 4.42 | 41,883 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,577 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,743 |
| State Quiz - California | 0 | - | 4.68 | 64,134 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,698 |
| State Quiz - Florida | 0 | - | 4.47 | 62,085 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,713 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,648 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,408 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 53,363 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,239 |
| State Quiz - Kentucky | 0 | - | 4.41 | 32,325 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,802 |
| Players With TD Receptions From Tom Brady | 0 | - | 4.18 | 13,458 |
| Tom Brady Quiz | 0 | - | 4.15 | 15,591 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,652 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,098 |
| State Quiz - New York | 0 | - | 4.52 | 45,880 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,234 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,149 |
| State Quiz - New Jersey | 0 | - | 4.42 | 37,988 |
| State Quiz - Texas | 0 | - | 4.43 | 62,640 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,115 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 48,771 |
| State Quiz - Tennessee | 0 | - | 4.54 | 33,998 |
| State Quiz - Virginia | 0 | - | 4.52 | 40,138 |
| State Quiz - Washington | 0 | - | 4.45 | 36,257 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,674 |
| The American Civil War | 0 | - | 4.62 | 52,247 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,719 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,373 |
| New England States | 0 | - | 4.51 | 59,737 |
| U.S. States by Clue #1 | 0 | - | 4.50 | 38,778 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,740 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,384,426 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,554 |
| U.S. States with More Cows than People | 0 | - | 4.70 | 46,180 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,603 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,304 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,936 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,348 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,088 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,518 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,492 |
| US States by Borders in 30 Seconds | 0 | - | 4.69 | 2,670,218 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,789 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,762 |
| U.S. States by Borders | 0 | - | 4.63 | 35,168 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,526 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,441 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,704 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,654 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,963 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 183,604 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,815 |
