| Books with Names in the Title #2 | 0 | - | 4.42 | 54,458 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,289 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,291 |
| Character to Author #1 | 0 | - | 4.52 | 43,206 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,378 |
| Books with Food in the Title | 0 | - | 3.93 | 39,593 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,139 |
| Book Titles with Shared First Words | 0 | - | 4.52 | 15,038 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,008 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,615 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 17,974 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,848 |
| Character to Author #2 | 0 | - | 4.55 | 30,272 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,262 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,645 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,974 |
| Authors by Picture | 0 | - | 4.48 | 25,391 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,684 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,422 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,089 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,015 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,423 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,543 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,791 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,306 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,776 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,273 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,501 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,506 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,521 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,152 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,713 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,091 |
| Star Wars Quotes | 0 | - | 4.84 | 173,419 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,670 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,957 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,470 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,082 |
| Authors by Country | 0 | - | 4.40 | 32,087 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,916 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,506 |
| Title in the Lyrics - Musicals | 0 | - | 4.28 | 54,438 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,637 |
| Companies by Country | 0 | - | 4.56 | 118,700 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,802 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,861 |
| Astronomy Decoder | 0 | - | 4.50 | 37,843 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,019 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,951 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,771 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,474 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,198 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,230 |
| Literary Characters by Last Name | 0 | - | 4.37 | 26,084 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,478 |
| Popular Royal Names | 0 | - | 4.27 | 124,473 |
| First Names of Painters | 0 | - | 4.43 | 59,596 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,288 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,745 |
| Books by Country Quiz | 0 | - | 4.30 | 32,176 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,900 |
| What the Dickens? | 0 | - | 4.36 | 8,373 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,553 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,831 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,135 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,091 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,215 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,844 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,805 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,144 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,489 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,823 |
| Colors by Letter | 0 | - | 4.25 | 162,024 |
| Superhero Decoder | 0 | - | 4.36 | 54,323 |
| Marvel Superheroes | 0 | - | 4.37 | 294,625 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,835 |
| Car Model to Make | 0 | - | 4.18 | 195,145 |
| Famous Billionaires | 0 | - | 4.14 | 67,251 |
| Sibling Actors | 0 | - | 4.12 | 47,443 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,352 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,745 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,217 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,587 |
| Countries with Four Letters | 0 | - | 4.99 | 418,485 |
| Random Symbol to Element | 0 | - | 4.88 | 92,208 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,841 |
| Random Country to Capital | 0 | - | 4.98 | 911,522 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,535 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,118 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,859 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,823 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,174 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,895 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,248 |
| Countries with NO Military | 0 | - | 4.97 | 61,162 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,741 |
| NATO Countries | 0 | - | 4.98 | 275,686 |
| EU Countries Quiz | 0 | - | 4.99 | 269,888 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,020 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,181 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,483 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,629 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,410 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,616 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,264 |
| WWII First Names | 0 | - | 4.44 | 41,559 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,667 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,621 |
| Movies with Colors in the Title #1 | 0 | - | 3.84 | 36,095 |
| Songs with Love in the Title | 0 | - | 4.14 | 18,715 |
| Movies with Colors in the Title #2 | 0 | - | 3.47 | 54,332 |
| Songs with Colors in the Title | 0 | - | 3.88 | 41,505 |
| Songs with Countries in the Title | 0 | - | 3.85 | 44,462 |
| Political Quotes | 0 | - | 4.17 | 19,802 |
| Best-Selling Breakfast Cereals | 0 | - | 3.68 | 92,774 |
| Islands by Country #1 | 0 | - | 4.87 | 174,471 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,910 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,272 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,329 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,592 |
| Famous Catholics | 0 | - | 4.16 | 27,478 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,069 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,786 |
| Top 50 Comic Book Heroes | 0 | - | 3.95 | 75,462 |
| Supervillain Alter Egos Quiz | 0 | - | 4.14 | 8,637 |
| Batman Actors Quiz | 0 | - | 4.26 | 47,815 |
| Avengers Team Members | 0 | - | 4.05 | 77,043 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,287 |
| Avengers Infinity War Deaths | 0 | - | 4.24 | 45,285 |
| X-Men Mutants | 0 | - | 4.05 | 46,857 |
| The Spiderman Quiz | 0 | - | 4.31 | 71,911 |
| Sports Scandals (Mostly U.S.) | 0 | - | 4.00 | 34,339 |
| Most-Followed Twitter Users | 0 | - | 3.94 | 75,831 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,263 |
| Countries by Emojis | 0 | - | 4.99 | 236,143 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,000 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,430 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,442 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,300 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,424 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,509 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,194 |
| The Only Country ... | 0 | - | 4.91 | 79,868 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,300 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,097 |
| Country Chain | 0 | - | 4.96 | 215,710 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,333 |
| Random Countries by Borders | 0 | - | 4.99 | 81,662 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,770 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,194 |
| Capital Cities Chain | 0 | - | 4.84 | 81,910 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,332 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,843 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,987 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,209 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,787 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,446 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,369 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,547 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,776 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,378 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,463 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,002 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,238 |
| Military History Vocabulary | 0 | - | 4.91 | 66,645 |
| Battle to Country | 0 | - | 4.91 | 52,513 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,249 |
| Monarchies of Europe | 0 | - | 4.90 | 97,305 |
| Monarchies of Asia | 0 | - | 4.97 | 70,595 |
| Coldest World Capitals | 0 | - | 4.95 | 133,038 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,027 |
| World Currency Quiz | 0 | - | 4.92 | 298,413 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,839 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,069 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,896 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,159 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,733 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,481 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,545 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,122 |
| Richest Island Countries | 0 | - | 4.84 | 99,505 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,674 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,635 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,698 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,067 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,930 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,707 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,318 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,434 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,584 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,910 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,025 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,209 |
| Orthodox Countries | 0 | - | 4.91 | 130,368 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,264 |
| Buddhist Countries | 0 | - | 4.96 | 142,938 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,636 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,563 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,661 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,128 |
