| U.S. Presidents Quiz | 0 | - | 5.00 | 3,651,224 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,089 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,703 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,587 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,469 |
| Vietnam War Countries | 0 | - | 4.83 | 93,569 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,621 |
| Hawaiian Islands | 0 | - | 4.83 | 42,417 |
| Las Vegas Casinos | 0 | - | 4.12 | 37,962 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,936 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,876 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,838 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,894 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,409 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,952 |
| Presidential Middle Names | 0 | - | 4.41 | 59,661 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,698 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,773 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,150 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,233 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,297 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,905 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,248 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,249 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,363 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,818 |
| U.S. Senators by State | 0 | - | 4.44 | 39,738 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,721 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,359 |
| The American Revolution | 0 | - | 4.52 | 54,042 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 46,477 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,200 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,012 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,017 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,464 |
| US States Quiz | 0 | - | 5.00 | 16,689,257 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,296 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,033 |
| Name a Valid African Country | 0 | - | 4.98 | 152,871 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,584 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,597 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,411 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,726 |
| Pixelated United States Map | 0 | - | 4.89 | 93,416 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,372 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,793 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,683 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,503 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,160 |
| First Ladies of the United States | 0 | - | 4.28 | 85,218 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,809 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,102 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,221 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,992 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,823 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,621 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,613 |
| Harvard University | 0 | - | 4.15 | 8,258 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,574 |
| Boston Celtics Trivia | 0 | - | 4.09 | 14,522 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,031 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,573 |
| New Jersey Counties | 0 | - | 4.56 | 29,916 |
| Six Flags Over Texas | 0 | - | 4.79 | 62,989 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,181 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,435 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,179 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,650 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,295 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,344 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,566 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,827 |
| U.S. States By Population | 0 | - | 4.92 | 152,299 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,323 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,817 |
| US States with an Empty Map | 0 | - | 5.00 | 618,450 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,865 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,158 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,496 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,731 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,830 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,820 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,049 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,439 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,045 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,635 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,789 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,677 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,366 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,065 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,038 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,914 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,507 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,133 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,503 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,493 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,639 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,500 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,998 |
| The Iraq War | 0 | - | 4.47 | 15,546 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,786 |
| Rivers of the United States | 0 | - | 4.93 | 65,462 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,339 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,685 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,252 |
| States that Beat Alaska | 0 | - | 4.49 | 26,380 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,477 |
| California Groups of Things | 0 | - | 4.25 | 45,261 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,472 |
| California A-Z | 0 | - | 4.49 | 28,701 |
| State Quiz - California | 0 | - | 4.68 | 63,932 |
| Golden State Warriors Trivia | 0 | - | 4.23 | 24,656 |
| State Quiz - Florida | 0 | - | 4.47 | 61,917 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 70,983 |
| Georgia Counties | 0 | - | 4.50 | 49,046 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,401 |
| New York Groups of Things | 0 | - | 4.38 | 59,921 |
| Fictional Characters from New York | 0 | - | 4.07 | 21,369 |
| State Quiz - New York | 0 | - | 4.52 | 45,715 |
| New York Counties | 0 | - | 4.64 | 49,863 |
| State Quiz - Texas | 0 | - | 4.43 | 62,469 |
| Texas Counties | 0 | - | 4.55 | 76,006 |
| North Carolina Counties | 0 | - | 4.53 | 52,666 |
| Ohio Counties | 0 | - | 4.47 | 45,370 |
| Pennsylvania Counties | 0 | - | 4.48 | 52,055 |
| Virginia Counties | 0 | - | 4.45 | 32,912 |
| West Virginia Counties | 0 | - | 4.61 | 33,522 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,225 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,504 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,507 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,554 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,513 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,818 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,595 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,981 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,029 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,903 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,524 |
| Merged U.S. States | 0 | - | 4.36 | 43,840 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,814 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,627 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,850 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,833 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,566 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,426 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,212 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,312 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,626 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,797 |
| Imagine Lyrics | 0 | - | 4.53 | 43,051 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,867 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,150 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,847 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,573 |
| South America Flags Map Quiz | 0 | - | 4.95 | 86,484 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,498 |
| American Foods | 0 | - | 3.66 | 39,271 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,902 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,052 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,363 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,457 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,455 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,443 |
| The George Washington Presidency | 0 | - | 4.03 | 14,470 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,653 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,486 |
| The John Adams Presidency | 0 | - | 4.12 | 8,674 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,864 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,679 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,202 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,605 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,767 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,639 |
| California Counties | 0 | - | 4.39 | 118,044 |
| States that Beat California | 0 | - | 4.54 | 63,214 |
| Which City in California? | 0 | - | 4.56 | 31,870 |
| Los Angeles Dodgers Trivia | 0 | - | 4.00 | 9,903 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,623 |
| Cities of Los Angeles County on a Map | 0 | - | 4.69 | 26,703 |
| Colorado Counties | 0 | - | 4.44 | 26,304 |
| Florida Counties | 0 | - | 4.39 | 48,081 |
| History of Florida | 0 | - | 4.45 | 9,759 |
| State Quiz - Hawaii | 0 | - | 4.35 | 64,912 |
| Illinois Counties | 0 | - | 4.56 | 30,037 |
| Indiana Counties | 0 | - | 4.46 | 28,598 |
| States that Beat Massachusetts | 0 | - | 4.15 | 21,442 |
| Boston Red Sox Trivia | 0 | - | 4.09 | 7,493 |
| State Quiz - Michigan | 0 | - | 4.27 | 51,846 |
| Michigan Cities Map Quiz | 0 | - | 4.45 | 20,900 |
| Michigan Counties | 0 | - | 4.63 | 30,016 |
| States that Beat New York | 0 | - | 4.51 | 44,532 |
| Cities that Beat New York | 0 | - | 4.51 | 28,254 |
| Top 15 New York Yankees of All-Time | 0 | - | 4.02 | 25,648 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,113 |
| Texas Cities Map Quiz | 0 | - | 4.38 | 81,291 |
| History of Texas | 0 | - | 4.43 | 14,547 |
| States that Beat Texas | 0 | - | 4.58 | 44,080 |
| Philadelphia Eagles Trivia | 0 | - | 3.94 | 11,502 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,072 |
