| U.S. Presidents Quiz | 0 | - | 5.00 | 3,731,293 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,753 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,035 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,375 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,920 |
| Vietnam War Countries | 0 | - | 4.82 | 94,760 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,631 |
| Hawaiian Islands | 0 | - | 4.83 | 43,010 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,163 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,720 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,314 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,667 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,469 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,758 |
| Presidential Middle Names | 0 | - | 4.42 | 60,805 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,745 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,939 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,657 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,272 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,781 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,965 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,802 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,982 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,039 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,072 |
| U.S. Senators by State | 0 | - | 4.44 | 40,143 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,255 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,661 |
| The American Revolution | 0 | - | 4.52 | 54,389 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,252 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,605 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,217 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,080 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,337 |
| US States Quiz | 0 | - | 5.00 | 17,023,891 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,299 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,623 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,600 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,568 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,063 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,260 |
| Pixelated United States Map | 0 | - | 4.89 | 94,939 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,757 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,600 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,492 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,166 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,179 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,382 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,798 |
| First Ladies of the United States | 0 | - | 4.28 | 86,024 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,337 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,534 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,386 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,120 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,235 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 61,040 |
| Harvard University | 0 | - | 4.15 | 8,335 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,998 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,218 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,400 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,827 |
| States That Beat Montana | 0 | - | 4.49 | 25,753 |
| New Jersey Counties | 0 | - | 4.57 | 30,704 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,663 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,999 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,497 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,346 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,192 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,442 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,465 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,523 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,573 |
| U.S. States By Population | 0 | - | 4.92 | 154,263 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,377 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,983 |
| US States with an Empty Map | 0 | - | 5.00 | 629,628 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,175 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,899 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,983 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,600 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,210 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,176 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,321 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,773 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,878 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,720 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,068 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,962 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,350 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,335 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,271 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,278 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,395 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,130 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,277 |
| Asian Last Names in the United States | 0 | - | 4.43 | 47,013 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,555 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,932 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,957 |
| The Iraq War | 0 | - | 4.47 | 15,719 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,601 |
| Name a Valid African Country | 0 | - | 4.98 | 155,269 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,459 |
| Rivers of the United States | 0 | - | 4.93 | 66,791 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,404 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,116 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,303 |
| States that Beat Alaska | 0 | - | 4.49 | 26,619 |
| State Quiz - Arizona | 0 | - | 4.44 | 37,016 |
| California Groups of Things | 0 | - | 4.26 | 45,806 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,594 |
| California A-Z | 0 | - | 4.49 | 28,856 |
| State Quiz - California | 0 | - | 4.69 | 64,941 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 25,076 |
| Los Angeles Lakers Trivia | 0 | - | 4.15 | 26,788 |
| State Quiz - Florida | 0 | - | 4.47 | 62,753 |
| Florida Counties | 0 | - | 4.41 | 49,207 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,850 |
| Georgia Counties | 0 | - | 4.52 | 50,204 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,701 |
| New York Groups of Things | 0 | - | 4.39 | 72,377 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,449 |
| State Quiz - New York | 0 | - | 4.52 | 46,543 |
| New York Counties | 0 | - | 4.65 | 51,336 |
| State Quiz - Texas | 0 | - | 4.43 | 63,303 |
| Texas Counties | 0 | - | 4.56 | 78,122 |
| North Carolina Counties | 0 | - | 4.55 | 53,841 |
| Ohio Counties | 0 | - | 4.48 | 46,388 |
| Pennsylvania Counties | 0 | - | 4.51 | 53,530 |
| Virginia Counties | 0 | - | 4.45 | 33,548 |
| West Virginia Counties | 0 | - | 4.63 | 34,071 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,630 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,966 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,462 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,873 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,274 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,021 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,694 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,995 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,582 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,110 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,269 |
| Merged U.S. States | 0 | - | 4.37 | 44,461 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,131 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,401 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,609 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,751 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,810 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,663 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,417 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,301 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,006 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,203 |
| Imagine Lyrics | 0 | - | 4.53 | 43,578 |
| Topological Map of Asia Quiz | 0 | - | 4.83 | 20,562 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,584 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,474 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,529 |
| South America Flags Map Quiz | 0 | - | 4.95 | 89,168 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,144 |
| American Foods | 0 | - | 3.66 | 39,457 |
| Names of Generations | 0 | - | 4.09 | 45,596 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,176 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,302 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,830 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,884 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.38 | 24,089 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,903 |
| The George Washington Presidency | 0 | - | 4.03 | 14,622 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,789 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,776 |
| The John Adams Presidency | 0 | - | 4.12 | 8,799 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 17,001 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,786 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,398 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,776 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,940 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,967 |
| California Counties | 0 | - | 4.39 | 120,557 |
| States that Beat California | 0 | - | 4.54 | 63,931 |
| Which City in California? | 0 | - | 4.56 | 32,195 |
| Los Angeles Dodgers Trivia | 0 | - | 4.00 | 9,990 |
| Los Angeles vs. New York | 0 | - | 4.41 | 20,073 |
| Cities of Los Angeles County on a Map | 0 | - | 4.69 | 27,490 |
| Colorado Counties | 0 | - | 4.45 | 27,013 |
| History of Florida | 0 | - | 4.45 | 9,883 |
| State Quiz - Hawaii | 0 | - | 4.35 | 65,761 |
| Illinois Counties | 0 | - | 4.56 | 30,719 |
| Indiana Counties | 0 | - | 4.46 | 29,261 |
| States that Beat Massachusetts | 0 | - | 4.15 | 21,623 |
| Boston Red Sox Trivia | 0 | - | 4.09 | 7,594 |
| State Quiz - Michigan | 0 | - | 4.27 | 52,568 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 21,174 |
| Michigan Counties | 0 | - | 4.63 | 30,948 |
| States that Beat New York | 0 | - | 4.50 | 45,348 |
| Cities that Beat New York | 0 | - | 4.51 | 28,923 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,282 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,690 |
| History of Texas | 0 | - | 4.43 | 14,698 |
| States that Beat Texas | 0 | - | 4.58 | 44,541 |
