| U.S. Presidents Quiz | 0 | - | 5.00 | 3,703,697 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,673 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,061 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,000 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,648 |
| Vietnam War Countries | 0 | - | 4.82 | 94,294 |
| United States Map Quiz | 0 | - | 4.98 | 4,161,424 |
| Hawaiian Islands | 0 | - | 4.83 | 42,746 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,079 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,558 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,135 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,820 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,604 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 93,896 |
| Presidential Middle Names | 0 | - | 4.41 | 60,347 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,400 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,636 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,459 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,726 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,365 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,204 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,543 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,563 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,606 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,771 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,546 |
| U.S. Senators by State | 0 | - | 4.44 | 39,981 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,026 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,099 |
| The American Revolution | 0 | - | 4.52 | 54,267 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 46,958 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,459 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,224 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,057 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,996 |
| US States Quiz | 0 | - | 5.00 | 16,896,432 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,411 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,466 |
| Name a Valid African Country | 0 | - | 4.98 | 154,220 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,026 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,757 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,448 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,616 |
| Pixelated United States Map | 0 | - | 4.87 | 94,365 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,824 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,883 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,202 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,909 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,370 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,270 |
| First Ladies of the United States | 0 | - | 4.28 | 85,694 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,967 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,236 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,192 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,225 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,985 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,992 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,913 |
| Harvard University | 0 | - | 4.15 | 8,301 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,835 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,053 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,255 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,303 |
| States That Beat Montana | 0 | - | 4.49 | 25,668 |
| New Jersey Counties | 0 | - | 4.57 | 30,366 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,403 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,932 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,120 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,285 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,027 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,561 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,552 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,159 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,462 |
| U.S. States By Population | 0 | - | 4.92 | 153,645 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,580 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,517 |
| US States with an Empty Map | 0 | - | 5.00 | 625,311 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,628 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,280 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,416 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,262 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,708 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,177 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,877 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,337 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,619 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,364 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,661 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,844 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,593 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,120 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,350 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,208 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,527 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,880 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,812 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,807 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,190 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,936 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,126 |
| The Iraq War | 0 | - | 4.47 | 15,663 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,207 |
| Rivers of the United States | 0 | - | 4.93 | 66,261 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,567 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,924 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,455 |
| States that Beat Alaska | 0 | - | 4.49 | 26,524 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,753 |
| California Groups of Things | 0 | - | 4.25 | 45,502 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,534 |
| California A-Z | 0 | - | 4.49 | 28,798 |
| State Quiz - California | 0 | - | 4.69 | 64,493 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 24,936 |
| State Quiz - Florida | 0 | - | 4.47 | 62,391 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,355 |
| Georgia Counties | 0 | - | 4.51 | 49,533 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,189 |
| New York Groups of Things | 0 | - | 4.35 | 63,825 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,409 |
| State Quiz - New York | 0 | - | 4.52 | 46,169 |
| New York Counties | 0 | - | 4.65 | 50,691 |
| State Quiz - Texas | 0 | - | 4.43 | 62,923 |
| Texas Counties | 0 | - | 4.56 | 76,815 |
| North Carolina Counties | 0 | - | 4.54 | 53,372 |
| Ohio Counties | 0 | - | 4.48 | 45,869 |
| Pennsylvania Counties | 0 | - | 4.50 | 52,921 |
| Virginia Counties | 0 | - | 4.45 | 33,284 |
| West Virginia Counties | 0 | - | 4.63 | 33,848 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,486 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,185 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,724 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,213 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,574 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,756 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,783 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,211 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,856 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,544 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,947 |
| Merged U.S. States | 0 | - | 4.37 | 44,194 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,182 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,223 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,351 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,950 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,278 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,106 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,326 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,940 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,423 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,641 |
| Imagine Lyrics | 0 | - | 4.53 | 43,310 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,188 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,036 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,225 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,660 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,113 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,431 |
| American Foods | 0 | - | 3.66 | 39,391 |
| Names of Generations | 0 | - | 4.09 | 45,065 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,068 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,210 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,249 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,778 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,658 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,075 |
| The George Washington Presidency | 0 | - | 4.03 | 14,553 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,740 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,658 |
| The John Adams Presidency | 0 | - | 4.12 | 8,753 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,940 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,747 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,330 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,695 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,862 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,380 |
| California Counties | 0 | - | 4.39 | 119,437 |
| States that Beat California | 0 | - | 4.54 | 63,655 |
| Which City in California? | 0 | - | 4.56 | 32,050 |
| Los Angeles Dodgers Trivia | 0 | - | 4.00 | 9,956 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,899 |
| Cities of Los Angeles County on a Map | 0 | - | 4.69 | 27,115 |
| Colorado Counties | 0 | - | 4.45 | 26,738 |
| Florida Counties | 0 | - | 4.39 | 48,656 |
| History of Florida | 0 | - | 4.45 | 9,832 |
| State Quiz - Hawaii | 0 | - | 4.35 | 65,380 |
| Illinois Counties | 0 | - | 4.56 | 30,426 |
| Indiana Counties | 0 | - | 4.46 | 29,013 |
| States that Beat Massachusetts | 0 | - | 4.15 | 21,546 |
| Boston Red Sox Trivia | 0 | - | 4.09 | 7,554 |
| State Quiz - Michigan | 0 | - | 4.27 | 52,239 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 21,101 |
| Michigan Counties | 0 | - | 4.63 | 30,393 |
| States that Beat New York | 0 | - | 4.50 | 45,033 |
| Cities that Beat New York | 0 | - | 4.51 | 28,668 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,220 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,541 |
| History of Texas | 0 | - | 4.43 | 14,642 |
| States that Beat Texas | 0 | - | 4.58 | 44,378 |
| Philadelphia Eagles Trivia | 0 | - | 3.91 | 11,593 |
