| U.S. Presidents Quiz | 0 | - | 5.00 | 3,726,584 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,825 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 70,301 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,282 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,336 |
| UK Baby Girl Names by Decade | 0 | - | 4.38 | 161,775 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 133,172 |
| Vietnam War Countries | 0 | - | 4.82 | 94,656 |
| U.S. Senators by State | 0 | - | 4.44 | 40,109 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,597 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,730 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,254 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,973 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,646 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,591 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,985 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,570 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,358 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,643 |
| Presidential Middle Names | 0 | - | 4.41 | 60,738 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,699 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,900 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,209 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,638 |
| The American Revolution | 0 | - | 4.52 | 54,363 |
| California A-Z | 0 | - | 4.49 | 28,846 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,745 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,897 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,501 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,834 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,432 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,956 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,577 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,538 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,107 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,018 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,737 |
| New York Yankees Trivia | 0 | - | 4.29 | 7,272 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,274 |
| US States Quiz | 0 | - | 5.00 | 16,999,317 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,701 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,995 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,404 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,502 |
| Pixelated United States Map | 0 | - | 4.88 | 94,827 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,571 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,457 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,243 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,688 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,027 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,366 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,778 |
| First Ladies of the United States | 0 | - | 4.28 | 85,984 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,069 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,320 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,498 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,364 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,102 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 59,096 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,090 |
| Top 10 Boston Red Sox of All-Time | 0 | - | 4.02 | 11,913 |
| Boston Red Sox Trivia | 0 | - | 4.09 | 7,585 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,150 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,804 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,091 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,237 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,295 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,328 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,376 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,393 |
| U.S. States By Population | 0 | - | 4.92 | 154,168 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,247 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,906 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,315 |
| US States with an Empty Map | 0 | - | 5.00 | 628,805 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,096 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,876 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,543 |
| Draw All US State Borders | 0 | - | 4.99 | 140,975 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,112 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,992 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,065 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,240 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,695 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,830 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,657 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,482 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,054 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,000 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,974 |
| Merged U.S. States | 0 | - | 4.37 | 44,428 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,948 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,173 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,305 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,402 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,101 |
| Monty Python Quotes | 0 | - | 4.89 | 42,611 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 379,698 |
| The Iraq War | 0 | - | 4.47 | 15,705 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,742 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,554 |
| Rivers of the United States | 0 | - | 4.93 | 66,693 |
| Names of Generations | 0 | - | 4.09 | 45,528 |
| American Junk Food Brands #1 | 0 | - | 3.84 | 61,045 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,735 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,561 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,781 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,757 |
| The John Adams Presidency | 0 | - | 4.12 | 8,791 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,776 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,932 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,166 |
| California... or Florida? | 0 | - | 4.60 | 51,860 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,211 |
| Hawaiian Islands | 0 | - | 4.83 | 42,958 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,611 |
| Harvard University | 0 | - | 4.15 | 8,327 |
| Top 20 Yankees: All-Time Home Run Leaders | 0 | - | 3.97 | 12,570 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,261 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,512 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,466 |
| U.S. State Flags | 0 | - | 4.89 | 173,022 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,718 |
| U.S. States by Emoji | 0 | - | 4.48 | 101,387 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,577 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,131 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,883 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,535 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,869 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,220 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,466 |
| Random European Flag to Country | 0 | - | 4.90 | 184,275 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,261 |
| Harry Potter: Voldemort's Horcruxes | 0 | - | 4.45 | 113,085 |
| Random African Flag to Country | 0 | - | 4.87 | 75,655 |
| Puerto Rico Trivia | 0 | - | 4.52 | 12,070 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,631 |
| Territories of the United States | 0 | - | 4.80 | 52,631 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,892 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,120 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,532 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,402 |
| U.S. Highway Signs By State | 0 | - | 4.47 | 15,582 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,329 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,651 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,228 |
| The George Washington Presidency | 0 | - | 4.03 | 14,613 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,993 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,382 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,764 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,881 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,846 |
| Biggest Cities in California | 0 | - | 4.35 | 140,411 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,622 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 25,053 |
| Los Angeles Lakers Trivia | 0 | - | 4.15 | 26,765 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,418 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,415 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,972 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,186 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,919 |
| New York City Geography | 0 | - | 4.43 | 33,189 |
| New York City A-Z | 0 | - | 4.18 | 32,386 |
| New York Yankees Retired Numbers | 0 | - | 3.73 | 9,336 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,714 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,974 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,544 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,291 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,654 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,338 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,556,048 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,485 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,632 |
| Random U.S. States on a Map | 0 | - | 4.96 | 630,439 |
| U.S. State Birds | 0 | - | 4.31 | 21,517 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,170 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,808 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,563 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,564 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,755 |
| Name the Harry Potter Books | 0 | - | 4.31 | 280,794 |
| Harry Potter Spells | 0 | - | 4.30 | 140,079 |
| Groups of Things - Harry Potter | 0 | - | 4.78 | 282,766 |
| Harry Potter Places | 0 | - | 4.35 | 108,759 |
| Harry Potter - Order of the Phoenix Members | 0 | - | 4.06 | 43,222 |
| Harry Potter A-Z | 0 | - | 4.43 | 228,275 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 397,433 |
| Harry Potter Creatures | 0 | - | 4.30 | 64,461 |
| Lord of the Rings Characters by Screen Time | 0 | - | 4.55 | 77,671 |
| The Persian Gulf War | 0 | - | 4.02 | 8,487 |
| Africa Map with Random Merged Countries | 0 | - | 4.94 | 74,443 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,303 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,512 |
| Australian Capitals | 0 | - | 4.92 | 62,835 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,014 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 57,310 |
| Most Guessed North American Teams by Sport | 0 | - | 4.28 | 65,094 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,631 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,749 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,679 |
