| Books with Names in the Title #2 | 0 | - | 4.42 | 54,458 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,285 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,289 |
| Character to Author #1 | 0 | - | 4.52 | 43,205 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,377 |
| Books with Food in the Title | 0 | - | 3.93 | 39,593 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,138 |
| Book Titles with Shared First Words | 0 | - | 4.52 | 15,036 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,008 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,614 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 17,974 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,823 |
| Character to Author #2 | 0 | - | 4.55 | 30,270 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,262 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,600 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,961 |
| Authors by Picture | 0 | - | 4.48 | 25,391 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,645 |
| 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 | 136,996 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,416 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,536 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,781 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,296 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,770 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,273 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,492 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,493 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,515 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,145 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,704 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,086 |
| Star Wars Quotes | 0 | - | 4.84 | 173,407 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,656 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,955 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,454 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,067 |
| Authors by Country | 0 | - | 4.40 | 32,086 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,915 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,504 |
| Title in the Lyrics - Musicals | 0 | - | 4.28 | 54,436 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,623 |
| Companies by Country | 0 | - | 4.56 | 118,694 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,799 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,860 |
| Astronomy Decoder | 0 | - | 4.50 | 37,840 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,016 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,949 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,736 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,473 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,190 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,228 |
| Literary Characters by Last Name | 0 | - | 4.37 | 26,084 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,214 |
| Popular Royal Names | 0 | - | 4.27 | 124,469 |
| First Names of Painters | 0 | - | 4.43 | 59,595 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,283 |
| 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 | 71,897 |
| What the Dickens? | 0 | - | 4.36 | 8,373 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,551 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,759 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,126 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,084 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,211 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,842 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,804 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,124 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,484 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,822 |
| Colors by Letter | 0 | - | 4.25 | 162,020 |
| Superhero Decoder | 0 | - | 4.36 | 54,322 |
| Marvel Superheroes | 0 | - | 4.37 | 294,606 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,822 |
| Car Model to Make | 0 | - | 4.18 | 195,142 |
| Famous Billionaires | 0 | - | 4.14 | 67,250 |
| Sibling Actors | 0 | - | 4.12 | 47,443 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,347 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,732 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,216 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,587 |
| Countries with Four Letters | 0 | - | 4.99 | 418,467 |
| Random Symbol to Element | 0 | - | 4.88 | 92,203 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,780 |
| Random Country to Capital | 0 | - | 4.98 | 911,491 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,534 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,114 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,857 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,815 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,174 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,870 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,218 |
| Countries with NO Military | 0 | - | 4.97 | 61,154 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,738 |
| NATO Countries | 0 | - | 4.98 | 275,659 |
| EU Countries Quiz | 0 | - | 4.99 | 269,874 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,014 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,163 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,462 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,625 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,368 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,614 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,262 |
| WWII First Names | 0 | - | 4.44 | 41,559 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,663 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,618 |
| Movies with Colors in the Title #1 | 0 | - | 3.84 | 36,095 |
| Songs with Love in the Title | 0 | - | 4.14 | 18,714 |
| Movies with Colors in the Title #2 | 0 | - | 3.47 | 54,331 |
| Songs with Colors in the Title | 0 | - | 3.88 | 41,503 |
| Songs with Countries in the Title | 0 | - | 3.85 | 44,461 |
| Political Quotes | 0 | - | 4.17 | 19,802 |
| Best-Selling Breakfast Cereals | 0 | - | 3.68 | 92,773 |
| Islands by Country #1 | 0 | - | 4.87 | 174,470 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,903 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,270 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,326 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,590 |
| Famous Catholics | 0 | - | 4.16 | 27,476 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,066 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,784 |
| 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 | 47,814 |
| Avengers Team Members | 0 | - | 4.05 | 77,041 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,284 |
| Avengers Infinity War Deaths | 0 | - | 4.24 | 45,283 |
| X-Men Mutants | 0 | - | 4.05 | 46,856 |
| The Spiderman Quiz | 0 | - | 4.31 | 71,907 |
| Sports Scandals (Mostly U.S.) | 0 | - | 4.00 | 34,339 |
| Most-Followed Twitter Users | 0 | - | 3.94 | 75,829 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,257 |
| Countries by Emojis | 0 | - | 4.99 | 236,132 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,997 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,426 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,440 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,298 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,415 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,492 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,187 |
| The Only Country ... | 0 | - | 4.91 | 79,854 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,300 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,096 |
| Country Chain | 0 | - | 4.96 | 215,703 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,329 |
| Random Countries by Borders | 0 | - | 4.99 | 81,660 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,761 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,186 |
| Capital Cities Chain | 0 | - | 4.84 | 81,905 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,331 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,841 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,983 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,206 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,774 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,406 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,352 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,530 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,764 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,367 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,448 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,994 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,238 |
| Military History Vocabulary | 0 | - | 4.91 | 66,639 |
| Battle to Country | 0 | - | 4.91 | 52,507 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,245 |
| Monarchies of Europe | 0 | - | 4.90 | 97,299 |
| Monarchies of Asia | 0 | - | 4.97 | 70,591 |
| Coldest World Capitals | 0 | - | 4.95 | 133,038 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,026 |
| World Currency Quiz | 0 | - | 4.92 | 298,385 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,830 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,063 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,891 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,152 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,728 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,477 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,543 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,116 |
| Richest Island Countries | 0 | - | 4.84 | 99,501 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,667 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,634 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,696 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,058 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,927 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,700 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,305 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,425 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,577 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,907 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,016 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,206 |
| Orthodox Countries | 0 | - | 4.91 | 130,362 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,261 |
| Buddhist Countries | 0 | - | 4.96 | 142,932 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,634 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,490 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,609 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,086 |
