| U.S. Presidents by Picture | 0 | - | 4.87 | 423,594 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,244 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,789 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,668 |
| Vietnam War Countries | 0 | - | 4.83 | 93,586 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,331 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,937 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,295 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,371 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,849 |
| U.S. Senators by State | 0 | - | 4.45 | 39,744 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,323 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,383 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,474 |
| The American Revolution | 0 | - | 4.52 | 54,050 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 46,489 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,041 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,475 |
| US States Quiz | 0 | - | 5.00 | 16,695,797 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,220 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,822 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,634 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,122 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,825 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,868 |
| Pixelated United States Map | 0 | - | 4.89 | 93,452 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,435 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,827 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,508 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,652,985 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,812 |
| U.S. President Scramble | 0 | - | 4.40 | 116,188 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,016 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,692 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,251 |
| California A-Z | 0 | - | 4.49 | 28,703 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,608 |
| Top 15 New York Yankees of All-Time | 0 | - | 4.02 | 25,650 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,220 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,699 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,332 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,377 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,627 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,873 |
| U.S. States By Population | 0 | - | 4.92 | 152,331 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,373 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,842 |
| US States with an Empty Map | 0 | - | 5.00 | 618,647 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,882 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,533 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,754 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,865 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,853 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,066 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,463 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,058 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,652 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,813 |
| The Iraq War | 0 | - | 4.47 | 15,549 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,795 |
| Rivers of the United States | 0 | - | 4.93 | 65,493 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,393 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,381 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,533 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,086 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,507 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,288 |
| Hawaiian Islands | 0 | - | 4.83 | 42,424 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,423 |
| It's Always Sunny in Philadelphia Quiz | 0 | - | 4.34 | 15,765 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,082 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,686 |
| U.S. State Flags | 0 | - | 4.89 | 166,994 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,359 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,549 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,628 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,548 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,842 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,632 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,025 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,072 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,924 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,536 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,639 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,678 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,895 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,818 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,579 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,608 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,619 |
| Territories of the United States | 0 | - | 4.79 | 52,130 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,367 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,520 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,722 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,427 |
| Presidential Actors | 0 | - | 4.36 | 19,060 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,513 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,206 |
| Golden State Warriors Trivia | 0 | - | 4.23 | 24,668 |
| Los Angeles Lakers NBA All-Stars | 0 | - | 3.84 | 9,473 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 3.98 | 11,798 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,580 |
| Boston Celtics Trivia | 0 | - | 4.09 | 14,582 |
| New York City Geography | 0 | - | 4.42 | 32,921 |
| Cleveland Browns QBs Since 1999 | 0 | - | 4.32 | 7,685 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,184 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,517,928 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,595 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,476 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,454 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,012 |
| Doctor Who Actors | 0 | - | 4.61 | 17,853 |
| The Persian Gulf War | 0 | - | 4.02 | 8,400 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,405 |
| Countries of Africa | 0 | - | 5.00 | 2,507,031 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,973 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,488 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,148 |
| Australian Capitals | 0 | - | 4.92 | 62,592 |
| Australia Map Quiz | 0 | - | 4.94 | 342,430 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,528 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,072 |
| Most Guessed North American Teams by Sport | 0 | - | 4.28 | 63,770 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,088 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,256 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,473 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,079 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,083 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,074 |
| United States Country Quiz | 0 | - | 4.43 | 100,560 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,595 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,630 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 39,188 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,517 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,815 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,337 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,381 |
| Arms Exports - United States | 0 | - | 4.70 | 54,335 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,698 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,789 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,732 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,374 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,240 |
| US Presidents Breakdown Puzzle #1 | 0 | - | 3.69 | 19,958 |
| The Kennedy Family | 0 | - | 3.90 | 14,025 |
| State Quiz - Alaska | 0 | - | 4.42 | 41,785 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,486 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,634 |
| State Quiz - California | 0 | - | 4.68 | 63,951 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,582 |
| State Quiz - Florida | 0 | - | 4.47 | 61,929 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,620 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,067 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,317 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 53,228 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,148 |
| State Quiz - Kentucky | 0 | - | 4.41 | 32,241 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,684 |
| Players With TD Receptions From Tom Brady | 0 | - | 4.18 | 13,421 |
| Tom Brady Quiz | 0 | - | 4.15 | 15,564 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,550 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,039 |
| State Quiz - New York | 0 | - | 4.52 | 45,730 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,193 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,117 |
| State Quiz - New Jersey | 0 | - | 4.42 | 37,877 |
| State Quiz - Texas | 0 | - | 4.43 | 62,491 |
| Six Flags Over Texas | 0 | - | 4.79 | 63,003 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 48,614 |
| State Quiz - Tennessee | 0 | - | 4.54 | 33,892 |
| State Quiz - Virginia | 0 | - | 4.52 | 40,031 |
| State Quiz - Washington | 0 | - | 4.45 | 36,160 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,466 |
| The American Civil War | 0 | - | 4.62 | 52,150 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,662 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,315 |
| New England States | 0 | - | 4.51 | 59,705 |
| U.S. States by Clue #1 | 0 | - | 4.53 | 38,589 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,658 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,795 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,394 |
| U.S. States with More Cows than People | 0 | - | 4.63 | 40,433 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,469 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,178 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,881 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,271 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,026 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,302 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 51,624 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,664,077 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,626 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,656 |
| U.S. States by Borders | 0 | - | 4.63 | 35,065 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,283 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,411 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,158 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,461 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,926 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,465 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,678 |
