| U.S. Presidents Quiz | 0 | - | 5.00 | 3,703,947 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,611 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,259 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,576 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,910 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,086 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,082 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,939 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,002 |
| Vietnam War Countries | 0 | - | 4.82 | 94,298 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,471 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,907 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,786 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,789 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,949 |
| India A-Z | 0 | - | 4.42 | 34,155 |
| United States Map Quiz | 0 | - | 4.98 | 4,161,534 |
| Hawaiian Islands | 0 | - | 4.83 | 42,749 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,589 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,124 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,139 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,132 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,826 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,954 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,357 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,186 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,348 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,200 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,772 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,245 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,826 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,612 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,900 |
| Presidential Middle Names | 0 | - | 4.41 | 60,349 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,405 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,639 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,027 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,460 |
| The American Revolution | 0 | - | 4.52 | 54,268 |
| California Cities A-Z | 0 | - | 4.06 | 17,278 |
| California A-Z | 0 | - | 4.49 | 28,799 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 46,958 |
| Texas A-Z | 0 | - | 4.19 | 16,380 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,471 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,864 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,156 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,789 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,644 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,851 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,662 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,960 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,808 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,103 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,558 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,700 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,185 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,763 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,456 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,961 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,408 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,085 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,951 |
| Countries that Start with A | 0 | - | 4.98 | 2,164,813 |
| Countries that Start with B | 0 | - | 4.95 | 2,296,419 |
| Countries that Start with C | 0 | - | 4.96 | 1,823,708 |
| Countries that Start with D | 0 | - | 4.96 | 710,804 |
| Countries that Start with E | 0 | - | 4.95 | 1,378,505 |
| Countries that Start with G | 0 | - | 4.97 | 1,504,751 |
| Countries that Start with H | 0 | - | 4.96 | 605,594 |
| Countries that Start with I | 0 | - | 4.92 | 1,289,359 |
| Countries that Start with J | 0 | - | 4.98 | 603,228 |
| Countries that Start with K | 0 | - | 4.97 | 816,706 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,764 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,777 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,198 |
| Countries that Start with S | 0 | - | 4.98 | 1,756,349 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,678 |
| Countries that Start with U | 0 | - | 4.97 | 905,173 |
| Countries that Start with V | 0 | - | 4.98 | 609,803 |
| Countries that Start with F | 0 | - | 4.83 | 618,244 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,852 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,284 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,545 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,031 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,573 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,763 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,552 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,686 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,468 |
| U.S. Senators by State | 0 | - | 4.44 | 39,981 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,104 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,235 |
| Harvard University | 0 | - | 4.15 | 8,301 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,057 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,307 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,997 |
| US States Quiz | 0 | - | 5.00 | 16,897,402 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,293 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,228 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,136 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,246 |
| Monarchies of Europe | 0 | - | 4.90 | 98,244 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,605 |
| Russia A-Z | 0 | - | 4.46 | 27,256 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,094 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,044 |
| Monarchies of Asia | 0 | - | 4.97 | 71,151 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,956 |
| Japan A-Z | 0 | - | 4.40 | 42,066 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,305 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,571 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,230 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,781 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,798 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,067 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,523 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 31,055 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,207 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,654 |
| Pixelated United States Map | 0 | - | 4.87 | 94,371 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,834 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,889 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,574 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,659 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,379 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,270 |
| First Ladies of the United States | 0 | - | 4.28 | 85,695 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,968 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,236 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,193 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,225 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,925 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,754 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,996 |
| State Quiz - California | 0 | - | 4.69 | 64,494 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 24,938 |
| State Quiz - Florida | 0 | - | 4.47 | 62,392 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,914 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,358 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,836 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,053 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,255 |
| State Quiz - New York | 0 | - | 4.52 | 46,172 |
| New Jersey Counties | 0 | - | 4.57 | 30,368 |
| State Quiz - Texas | 0 | - | 4.43 | 62,925 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,404 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,136 |
| The American Civil War | 0 | - | 4.62 | 52,461 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,032 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,215 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,570 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,560 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,169 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,467 |
| U.S. States By Population | 0 | - | 4.92 | 153,653 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,590 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,523 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,733 |
| US States with an Empty Map | 0 | - | 5.00 | 625,349 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,632 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,265 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,711 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,184 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,880 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,340 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,624 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,368 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,806 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,809 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,860 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,553 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,720 |
| Merged U.S. States | 0 | - | 4.37 | 44,196 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,846 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,887 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,060 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,154 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,836 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,640 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,275 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,822 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,997 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,273 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,227 |
| European Geography A-Z | 0 | - | 4.29 | 49,320 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,358 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,326 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,645 |
| Name the English Monarchs | 0 | - | 4.91 | 503,378 |
| British History A-Z #1 | 0 | - | 4.45 | 46,545 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,115 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,964 |
| Asian Geography by Letter - G | 0 | - | 4.36 | 51,252 |
| Asian Geography by Letter - I | 0 | - | 4.37 | 67,827 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,769 |
| Asian Geography by Letter - N | 0 | - | 4.34 | 50,272 |
| Asian Geography By Letter - J | 0 | - | 4.26 | 34,764 |
| The Iraq War | 0 | - | 4.47 | 15,663 |
| One Country By Letter By Continent | 0 | - | 5.00 | 124,242 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,302 |
