| Books with Names in the Title #2 | 0 | - | 4.42 | 54,461 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,309 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,295 |
| Character to Author #1 | 0 | - | 4.52 | 43,219 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,386 |
| Books with Food in the Title | 0 | - | 3.93 | 39,597 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,144 |
| Book Titles with Shared First Words | 0 | - | 4.52 | 15,040 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,018 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,627 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 17,980 |
| 7 Deadly Sins | 0 | - | 4.88 | 395,079 |
| Character to Author #2 | 0 | - | 4.55 | 30,279 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,270 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,909 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,093 |
| Authors by Picture | 0 | - | 4.48 | 25,397 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,926 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,424 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,113 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,182 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,482 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,628 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,889 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,386 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,820 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,277 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,554 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,603 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,547 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,217 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,744 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,115 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,587 |
| Star Wars Quotes | 0 | - | 4.84 | 173,471 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,719 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,009 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,531 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,147 |
| Authors by Country | 0 | - | 4.40 | 32,091 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,943 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,528 |
| Title in the Lyrics - Musicals | 0 | - | 4.28 | 54,462 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,725 |
| Companies by Country | 0 | - | 4.56 | 118,734 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,812 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,878 |
| Astronomy Decoder | 0 | - | 4.50 | 37,851 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,033 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,963 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,948 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,491 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,259 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,250 |
| Literary Characters by Last Name | 0 | - | 4.37 | 26,086 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,732 |
| Popular Royal Names | 0 | - | 4.27 | 124,488 |
| First Names of Painters | 0 | - | 4.43 | 59,603 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,314 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,749 |
| Books by Country Quiz | 0 | - | 4.30 | 32,178 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,921 |
| What the Dickens? | 0 | - | 4.36 | 8,374 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,731 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,258 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,223 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,162 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,266 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,848 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,811 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,268 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,529 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,824 |
| Colors by Letter | 0 | - | 4.25 | 162,043 |
| Superhero Decoder | 0 | - | 4.36 | 54,340 |
| Marvel Superheroes | 0 | - | 4.37 | 294,706 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,894 |
| Car Model to Make | 0 | - | 4.18 | 195,182 |
| Famous Billionaires | 0 | - | 4.14 | 67,254 |
| Sibling Actors | 0 | - | 4.12 | 47,445 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,373 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,836 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,227 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,597 |
| Countries with Four Letters | 0 | - | 4.99 | 418,614 |
| Random Symbol to Element | 0 | - | 4.88 | 92,232 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,312 |
| Random Country to Capital | 0 | - | 4.98 | 911,806 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,547 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,139 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,865 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,877 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,228 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,013 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,424 |
| Countries with NO Military | 0 | - | 4.97 | 61,193 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,790 |
| NATO Countries | 0 | - | 4.98 | 275,864 |
| EU Countries Quiz | 0 | - | 4.99 | 270,043 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,096 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,287 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,603 |
| Authors with Books Turned into Movies | 0 | - | 4.44 | 62,635 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,698 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,620 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,269 |
| WWII First Names | 0 | - | 4.44 | 41,570 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,697 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,643 |
| Movies with Colors in the Title #1 | 0 | - | 3.84 | 36,098 |
| Songs with Love in the Title | 0 | - | 4.14 | 18,718 |
| Movies with Colors in the Title #2 | 0 | - | 3.47 | 54,334 |
| Songs with Colors in the Title | 0 | - | 3.88 | 41,508 |
| Songs with Countries in the Title | 0 | - | 3.85 | 44,466 |
| Political Quotes | 0 | - | 4.17 | 19,803 |
| Best-Selling Breakfast Cereals | 0 | - | 3.68 | 92,779 |
| Islands by Country #1 | 0 | - | 4.87 | 174,507 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,935 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,297 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,346 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,612 |
| Famous Catholics | 0 | - | 4.16 | 27,497 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,097 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,808 |
| Top 50 Comic Book Heroes | 0 | - | 3.95 | 75,469 |
| Supervillain Alter Egos Quiz | 0 | - | 4.14 | 8,639 |
| Batman Actors Quiz | 0 | - | 4.27 | 47,828 |
| Avengers Team Members | 0 | - | 4.05 | 77,070 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,324 |
| Avengers Infinity War Deaths | 0 | - | 4.24 | 45,299 |
| X-Men Mutants | 0 | - | 4.05 | 46,865 |
| The Spiderman Quiz | 0 | - | 4.31 | 71,945 |
| Sports Scandals (Mostly U.S.) | 0 | - | 4.00 | 34,342 |
| Most-Followed Twitter Users | 0 | - | 3.94 | 75,837 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,290 |
| Countries by Emojis | 0 | - | 4.99 | 236,239 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,008 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,471 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,466 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,353 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,465 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,656 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,265 |
| The Only Country ... | 0 | - | 4.91 | 79,925 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,303 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,131 |
| Country Chain | 0 | - | 4.96 | 215,764 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,362 |
| Random Countries by Borders | 0 | - | 4.99 | 81,689 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,865 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,254 |
| Capital Cities Chain | 0 | - | 4.84 | 81,938 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,350 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,864 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,013 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,228 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,863 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,620 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,460 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,636 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,838 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,448 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,532 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,057 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,244 |
| Military History Vocabulary | 0 | - | 4.91 | 66,662 |
| Battle to Country | 0 | - | 4.91 | 52,543 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,292 |
| Monarchies of Europe | 0 | - | 4.90 | 97,342 |
| Monarchies of Asia | 0 | - | 4.97 | 70,613 |
| Coldest World Capitals | 0 | - | 4.95 | 133,055 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,038 |
| World Currency Quiz | 0 | - | 4.92 | 298,592 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,929 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,123 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,935 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,195 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,761 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,519 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,565 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,153 |
| Richest Island Countries | 0 | - | 4.84 | 99,539 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,711 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,667 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,722 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,188 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,972 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,734 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,359 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,174 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,494 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,618 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,945 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,067 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,244 |
| Orthodox Countries | 0 | - | 4.91 | 130,416 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,297 |
| Buddhist Countries | 0 | - | 4.96 | 142,971 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,651 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,169 |
