| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,486 |
| Words for Leaders | 0 | - | 4.77 | 255,306 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,564 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,142 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,977 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,065 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,889 |
| World Leaders by Picture | 0 | - | 4.36 | 263,582 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,091 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,866 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,142 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,867 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,375 |
| Dictators by Picture | 0 | - | 4.18 | 48,899 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,234 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,074 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,227 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,513 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,679 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 333,316 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,836 |
| Political Figures by Last Name #2 | 0 | - | 3.88 | 16,609 |
| Spouses of World Leaders | 0 | - | 4.18 | 12,285 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,665 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,134 |
| Political Quotes | 0 | - | 4.17 | 19,811 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,554 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,134 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,493 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,403,937 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,743 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,350 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,625 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,740 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,585 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,321 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,814 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,167 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,638 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,669 |
| UN Secretaries-General | 0 | - | 4.40 | 7,768 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,705 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,552 |
| Name the English Monarchs | 0 | - | 4.92 | 498,351 |
| Star Wars Quotes | 0 | - | 4.84 | 173,557 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,061 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,625 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,049 |
| Nicknames in World History | 0 | - | 4.73 | 37,372 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,664 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,738 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,856 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,952 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,135 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,263 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,243 |
| Countries of the Popes | 0 | - | 4.79 | 127,293 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,855 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,890 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,693 |
| Empires by Maps | 0 | - | 4.98 | 118,663 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,006 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,281 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,589 |
| Political Movements by Country | 0 | - | 4.46 | 72,286 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,119 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,770 |
| Bible Quotes Quiz #1 | 0 | - | 4.41 | 61,327 |
| Bible Quotes Quiz #3 | 0 | - | 4.47 | 43,223 |
| Companies by Country | 0 | - | 4.56 | 118,778 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 223,768 |
| Name the Constellations | 0 | - | 4.58 | 44,703 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,358 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,758 |
| Brand Logos Quiz #2 | 0 | - | 4.69 | 1,680,407 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,006,512 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,048 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 665,299 |
| Metals of Antiquity | 0 | - | 4.94 | 92,956 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,223 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,258 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,585 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,327 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,616 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,581 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,008 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,689 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,327 |
| NATO Countries | 0 | - | 4.98 | 276,200 |
| EU Countries Quiz | 0 | - | 4.99 | 270,243 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,762 |
| U.S. States by Governor | 0 | - | 4.43 | 17,987 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,584 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,558 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,988 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,129 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,032 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,640 |
| Bible Quotes Quiz #2 | 0 | - | 4.27 | 52,521 |
| Bible Quotes Quiz #4 | 0 | - | 4.33 | 33,294 |
| The Bible - Who Said That? | 0 | - | 4.51 | 24,502 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,853 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,815 |
| American Corporate Slogans #1 | 0 | - | 4.06 | 65,190 |
| American Corporate Slogans #2 | 0 | - | 4.06 | 59,612 |
| Books by Country Quiz | 0 | - | 4.30 | 32,178 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,577 |
| Highest Grossing Superhero Movies | 0 | - | 4.37 | 165,959 |
| Superhero Decoder | 0 | - | 4.36 | 54,358 |
| Marvel Superheroes | 0 | - | 4.37 | 294,825 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,960 |
| Car Model to Make | 0 | - | 4.18 | 195,249 |
| Most Valuable Brands | 0 | - | 4.28 | 135,105 |
| Brand Logos Quiz #5 | 0 | - | 4.38 | 1,058,597 |
| Brand Logos Quiz #6 | 0 | - | 4.32 | 779,478 |
| Brand Logos Quiz #3 | 0 | - | 4.32 | 1,219,028 |
| Brand Logos Quiz #8 | 0 | - | 4.36 | 527,558 |
| Brand Logos Quiz #7 | 0 | - | 4.37 | 605,813 |
| Random Brand Logos | 0 | - | 4.45 | 399,771 |
| Famous Billionaires | 0 | - | 4.14 | 67,260 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,396 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,071 |
| Random Country to Capital | 0 | - | 4.98 | 912,242 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.75 | 38,136 |
| Influential Women in History | 0 | - | 4.42 | 35,121 |
| Cradles of Civilization | 0 | - | 4.46 | 39,176 |
| Former Flags | 0 | - | 4.97 | 106,799 |
| Materials From History #1 | 0 | - | 4.56 | 50,867 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,310 |
| Pope Facts | 0 | - | 4.39 | 31,059 |
| WWII First Names | 0 | - | 4.44 | 41,578 |
| Cold War Decoder | 0 | - | 4.83 | 51,969 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,475 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,280 |
| Famous Explorers | 0 | - | 4.58 | 35,987 |
| Famous Empires by Description | 0 | - | 4.73 | 117,980 |
| Answers by Time Period | 0 | - | 4.63 | 55,304 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,263 |
| Military History Vocabulary | 0 | - | 4.91 | 66,690 |
| Battle to Country | 0 | - | 4.91 | 52,581 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,738 |
| The Life of King David | 0 | - | 4.37 | 14,065 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,511 |
| English Royal Consorts | 0 | - | 4.37 | 37,193 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,627 |
| British History A-Z #1 | 0 | - | 4.45 | 46,070 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,170 |
| Kings of France Quiz | 0 | - | 4.20 | 32,572 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,432 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,186 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,560 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,820 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,636 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,275 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,775 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,677 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,969 |
| Quotes of Jesus | 0 | - | 4.23 | 13,709 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,602 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,630 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,145 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,830 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,188 |
| Crayola Crayon Colors 64 Pack | 0 | - | 4.99 | 62,091 |
| Top 50 Comic Book Heroes | 0 | - | 3.95 | 75,477 |
| Supervillain Alter Egos Quiz | 0 | - | 4.14 | 8,641 |
| Batman Actors Quiz | 0 | - | 4.27 | 47,844 |
| MCU Characters by Screen Time | 0 | - | 4.22 | 107,570 |
| Avengers Team Members | 0 | - | 4.07 | 77,101 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,403 |
| Avengers Infinity War Deaths | 0 | - | 4.24 | 45,317 |
| X-Men Mutants | 0 | - | 4.05 | 46,892 |
| The Spiderman Quiz | 0 | - | 4.31 | 72,010 |
| Brand-Name Animals | 0 | - | 4.16 | 74,301 |
| Brand Name Vocabulary | 0 | - | 4.16 | 38,011 |
| Clothing Brand Logos | 0 | - | 4.24 | 222,194 |
| Sports Scandals (Mostly U.S.) | 0 | - | 4.00 | 34,349 |
| Most-Followed Twitter Users | 0 | - | 3.94 | 75,845 |
| Countries by Emojis | 0 | - | 4.99 | 236,706 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,020 |
| California Groups of Things | 0 | - | 4.25 | 45,283 |
| New York Groups of Things | 0 | - | 4.38 | 59,956 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,599 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,167 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,445 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,407 |
| Capital Cities Chain | 0 | - | 4.84 | 81,970 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,382 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,891 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,043 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,261 |
| Soft Drink Brand Logos | 0 | - | 4.24 | 173,993 |
| Monarchies of Europe | 0 | - | 4.90 | 97,387 |
| Monarchies of Asia | 0 | - | 4.97 | 70,641 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,749 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,568 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,680 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,995 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,136 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,134 |
