| Countries by Number of Books Published | 0 | - | 4.95 | 72,918 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,364 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,532 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,519 |
| Dog Knowledge | 0 | - | 4.46 | 34,503 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,751 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 341,792 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,112 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,286 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,660 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,448 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,250 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,309 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,034 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,614 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,958 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,705 |
| Most Popular Dog Breeds in the U.S. | 0 | - | 4.14 | 113,750 |
| Books by Country Quiz | 0 | - | 4.30 | 32,294 |
| Books with Names in the Title #1 | 0 | - | 4.27 | 70,551 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,746 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,885 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,020 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,221 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,647 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,840 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,360 |
| Sayings About Animals #1 | 0 | - | 4.35 | 108,019 |
| Disney Animals | 0 | - | 4.27 | 240,388 |
| Sayings About Animals #4 | 0 | - | 4.21 | 42,186 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,694 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,564 |
| Star Wars Quotes | 0 | - | 4.86 | 185,492 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,948 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,702 |
| Name a Country A-Z | 0 | - | 5.00 | 244,797 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.84 | 52,764 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 122,474 |
| Animal Emojis | 0 | - | 4.74 | 84,996 |
| Dog in the Answers | 0 | - | 4.16 | 68,791 |
| Famous Dogs | 0 | - | 4.02 | 28,025 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,309 |
| Books with Food in the Title | 0 | - | 3.93 | 39,727 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 129,766 |
| Sayings About Animals #2 | 0 | - | 3.96 | 85,843 |
| Sayings About Animals #3 | 0 | - | 3.91 | 77,326 |
| Authors by Picture | 0 | - | 4.48 | 25,597 |
| Title in the Lyrics - Musicals | 0 | - | 4.28 | 54,939 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 364,806 |
| Companies by Country | 0 | - | 4.61 | 119,968 |
| Groups of Things - The Bible | 0 | - | 4.44 | 55,457 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,315 |
| Astronomy Decoder | 0 | - | 4.48 | 38,148 |
| Word Chain - The Bible | 0 | - | 4.48 | 50,882 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 139,272 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 671,401 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.48 | 71,283 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 144,979 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,939 |
| Animal Idioms Quiz #1 | 0 | - | 4.29 | 43,122 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,679 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,532 |
| Character to Author #1 | 0 | - | 4.52 | 43,552 |
| Popular Royal Names | 0 | - | 4.27 | 125,196 |
| First Names of Painters | 0 | - | 4.43 | 59,970 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 61,435 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,877 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,641,349 |
| Bear in the Answers | 0 | - | 4.29 | 62,171 |
| Songs with Animals in the Title #1 | 0 | - | 4.36 | 129,557 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,581 |
| Cartoon Catchphrases Quiz | 0 | - | 4.20 | 69,870 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,772 |
| Famous Pets | 0 | - | 3.98 | 30,476 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,456 |
| Book Titles with Shared First Words | 0 | - | 4.53 | 15,272 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,273 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,807 |
| Character to Author #2 | 0 | - | 4.55 | 30,476 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,387 |
| Movies with Landforms in the Name | 0 | - | 4.16 | 50,507 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,163 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,108,711 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,088 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,530 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,122 |
| Sci-Fi Movie Quotes | 0 | - | 4.32 | 37,123 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 41,026 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,772 |
| Famous Catholics | 0 | - | 4.26 | 33,231 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 277,703 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,944 |
| Colors by Letter | 0 | - | 4.25 | 162,800 |
| Superhero Decoder | 0 | - | 4.36 | 54,889 |
| Marvel Superheroes | 0 | - | 4.38 | 298,448 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 117,000 |
| Car Model to Make | 0 | - | 4.18 | 196,885 |
| Famous Billionaires | 0 | - | 4.14 | 67,514 |
| Sibling Actors | 0 | - | 4.12 | 47,601 |
| Small Countries with Large Economies | 0 | - | 4.63 | 90,238 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,308 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,537 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,833 |
| Countries with Four Letters | 0 | - | 4.99 | 424,544 |
| Random Symbol to Element | 0 | - | 4.88 | 93,538 |
| Random Capital to Country | 0 | - | 4.99 | 2,597,323 |
| Random Country to Capital | 0 | - | 4.98 | 924,921 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,191 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,739 |
| Name a Valid World City | 0 | - | 4.84 | 71,657 |
| Category Elimination - Cities | 0 | - | 4.25 | 41,172 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,285 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,143 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,485 |
| Countries with NO Military | 0 | - | 4.97 | 62,883 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,301 |
| NATO Countries | 0 | - | 4.98 | 282,342 |
| EU Countries Quiz | 0 | - | 4.99 | 276,492 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,710 |
| Books of the Protestant Bible | 0 | - | 4.84 | 211,220 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,474 |
| Big Cats | 0 | - | 3.91 | 67,866 |
| Animal Varieties #1 | 0 | - | 4.48 | 93,059 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,127 |
| Animal Varieties #3 | 0 | - | 4.52 | 55,516 |
| Brand-Name Animals | 0 | - | 4.16 | 74,606 |
| Animal Stereotypes | 0 | - | 4.48 | 37,404 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,462 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 97,452 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 87,676 |
| WWII First Names | 0 | - | 4.44 | 41,908 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,135 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,460 |
| Movies with Colors in the Title #1 | 0 | - | 3.84 | 36,210 |
| Songs with Love in the Title | 0 | - | 4.14 | 18,836 |
| Movies with Colors in the Title #2 | 0 | - | 3.47 | 54,514 |
| Songs with Colors in the Title | 0 | - | 3.88 | 41,699 |
| Songs with Countries in the Title | 0 | - | 3.81 | 44,614 |
| Political Quotes | 0 | - | 4.17 | 19,930 |
| Best-Selling Breakfast Cereals | 0 | - | 3.68 | 92,927 |
| Islands by Country #1 | 0 | - | 4.90 | 175,764 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,915 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,275 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,004 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,369 |
| Superhero Alter Egos | 0 | - | 4.29 | 165,397 |
| Who Did These Sidekicks Work With? | 0 | - | 4.25 | 110,342 |
| Crayola Crayon Colors 64 Pack | 0 | - | 4.99 | 62,979 |
| Top 50 Comic Book Heroes | 0 | - | 3.93 | 75,799 |
| Supervillain Alter Egos Quiz | 0 | - | 4.14 | 8,794 |
| Batman Actors Quiz | 0 | - | 4.27 | 48,161 |
| Avengers Team Members | 0 | - | 4.07 | 78,080 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 114,444 |
| Avengers Infinity War Deaths | 0 | - | 4.24 | 45,881 |
| X-Men Mutants | 0 | - | 4.06 | 47,510 |
| The Spiderman Quiz | 0 | - | 4.31 | 73,337 |
| Sports Scandals (Mostly U.S.) | 0 | - | 4.00 | 34,475 |
| Most-Followed Twitter Users | 0 | - | 3.94 | 75,998 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 29,457 |
| Countries by Emojis | 0 | - | 4.99 | 241,024 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,469 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,415 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,502 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,481 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,866 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.15 | 63,071 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,662 |
| The Only Country ... | 0 | - | 4.91 | 81,616 |
| Cities that End in T by Clue | 0 | - | 4.70 | 17,532 |
| Cities that End in G by Clue | 0 | - | 4.54 | 21,694 |
| Cities that End in D by Clue | 0 | - | 4.45 | 27,078 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,487 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,315 |
| Country Chain | 0 | - | 4.96 | 217,903 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,454 |
| Random Countries by Borders | 0 | - | 4.99 | 82,822 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,011 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,819 |
| Random Point on Land to Country | 0 | - | 4.99 | 236,411 |
| Capital Cities Chain | 0 | - | 4.84 | 83,138 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,952 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,720 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,289 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,964 |
| Name a Valid Country #3 | 0 | - | 4.99 | 264,230 |
| Name a Valid Country #1 | 0 | - | 4.99 | 292,532 |
| Name a Valid Country #2 | 0 | - | 4.98 | 252,248 |
| Name a Valid Country #4 | 0 | - | 4.97 | 257,336 |
| Name a Valid Country #5 | 0 | - | 4.99 | 208,320 |
| Name a Valid Island Country | 0 | - | 4.96 | 115,320 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,468 |
| Name a Valid Country #7 | 0 | - | 4.91 | 130,225 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,527 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,206 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,538 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 735,741 |
| Military History Vocabulary | 0 | - | 4.91 | 67,476 |
| Battle to Country | 0 | - | 4.91 | 53,707 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,919 |
| Monarchies of Europe | 0 | - | 4.90 | 98,550 |
