| Books with Names in the Title #2 | 0 | - | 4.42 | 54,458 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,291 |
| 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 | 39,594 |
| 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 | 394,869 |
| Character to Author #2 | 0 | - | 4.55 | 30,272 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,263 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,682 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,991 |
| Authors by Picture | 0 | - | 4.48 | 25,391 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,719 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,422 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,094 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,027 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,429 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,561 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,808 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,319 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,782 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,273 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,504 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,520 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,523 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,161 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,715 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,094 |
| Star Wars Quotes | 0 | - | 4.84 | 173,427 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,676 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,963 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,479 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,090 |
| Authors by Country | 0 | - | 4.40 | 32,087 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,919 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,508 |
| Title in the Lyrics - Musicals | 0 | - | 4.28 | 54,443 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,657 |
| Companies by Country | 0 | - | 4.56 | 118,706 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,803 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,866 |
| Astronomy Decoder | 0 | - | 4.50 | 37,843 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,020 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,952 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,807 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,475 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,209 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,232 |
| Literary Characters by Last Name | 0 | - | 4.37 | 26,084 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,728 |
| Popular Royal Names | 0 | - | 4.27 | 124,476 |
| First Names of Painters | 0 | - | 4.43 | 59,597 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,288 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,746 |
| Books by Country Quiz | 0 | - | 4.30 | 32,176 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,901 |
| What the Dickens? | 0 | - | 4.36 | 8,373 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,556 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,886 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,145 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,097 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,220 |
| 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 | 743,192 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,494 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,823 |
| Colors by Letter | 0 | - | 4.25 | 162,030 |
| Superhero Decoder | 0 | - | 4.36 | 54,325 |
| Marvel Superheroes | 0 | - | 4.37 | 294,635 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,841 |
| Car Model to Make | 0 | - | 4.18 | 195,146 |
| Famous Billionaires | 0 | - | 4.14 | 67,251 |
| Sibling Actors | 0 | - | 4.12 | 47,444 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,355 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,751 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,217 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,588 |
| Countries with Four Letters | 0 | - | 4.99 | 418,500 |
| Random Symbol to Element | 0 | - | 4.88 | 92,212 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,893 |
| Random Country to Capital | 0 | - | 4.98 | 911,543 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,536 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,120 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,860 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,828 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,181 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,908 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,273 |
| Countries with NO Military | 0 | - | 4.97 | 61,167 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,747 |
| NATO Countries | 0 | - | 4.98 | 275,711 |
| EU Countries Quiz | 0 | - | 4.99 | 269,896 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,030 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,200 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,499 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,629 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,446 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,617 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,264 |
| WWII First Names | 0 | - | 4.44 | 41,560 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,671 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,625 |
| Movies with Colors in the Title #1 | 0 | - | 3.84 | 36,096 |
| 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 | 41,506 |
| 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 | 174,475 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,914 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,276 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,329 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,593 |
| Famous Catholics | 0 | - | 4.16 | 27,480 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,074 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,788 |
| 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 | 77,048 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,294 |
| Avengers Infinity War Deaths | 0 | - | 4.24 | 45,289 |
| X-Men Mutants | 0 | - | 4.05 | 46,858 |
| The Spiderman Quiz | 0 | - | 4.31 | 71,918 |
| Sports Scandals (Mostly U.S.) | 0 | - | 4.00 | 34,340 |
| Most-Followed Twitter Users | 0 | - | 3.94 | 75,833 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,266 |
| Countries by Emojis | 0 | - | 4.99 | 236,154 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,000 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,434 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,444 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,310 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,427 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,536 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,203 |
| The Only Country ... | 0 | - | 4.91 | 79,869 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,300 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,104 |
| Country Chain | 0 | - | 4.96 | 215,716 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,336 |
| Random Countries by Borders | 0 | - | 4.99 | 81,667 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,787 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,209 |
| Capital Cities Chain | 0 | - | 4.84 | 81,912 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,336 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,847 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,990 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,213 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,795 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,461 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,378 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,559 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,785 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,388 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,475 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,010 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,238 |
| Military History Vocabulary | 0 | - | 4.91 | 66,647 |
| Battle to Country | 0 | - | 4.91 | 52,517 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,259 |
| Monarchies of Europe | 0 | - | 4.90 | 97,306 |
| Monarchies of Asia | 0 | - | 4.97 | 70,597 |
| Coldest World Capitals | 0 | - | 4.95 | 133,039 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,027 |
| World Currency Quiz | 0 | - | 4.92 | 298,431 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,850 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,077 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,901 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,161 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,738 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,486 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,548 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,126 |
| Richest Island Countries | 0 | - | 4.84 | 99,510 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,680 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,637 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,702 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,082 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,934 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,710 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,322 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,446 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,589 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,915 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,030 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,214 |
| Orthodox Countries | 0 | - | 4.91 | 130,376 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,268 |
| Buddhist Countries | 0 | - | 4.96 | 142,945 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,639 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,638 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,728 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,186 |
