| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,829 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,647 |
| Astronomy Decoder | 0 | - | 4.50 | 37,850 |
| Random Symbol to Element | 0 | - | 4.88 | 92,229 |
| Astronomy Quiz | 0 | - | 4.90 | 81,716 |
| Solar System Trivia | 0 | - | 4.93 | 46,038 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,992 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,197 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,241 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,809 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,050 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,102 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,474 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,837 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,141 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,463 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,599 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,860 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,354 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,806 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 223,613 |
| Name the Constellations | 0 | - | 4.58 | 44,663 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,537 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,578 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,539 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,194 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,735 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,105 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,576 |
| International Scientific Units | 0 | - | 4.95 | 155,376 |
| First Names of Scientists | 0 | - | 4.50 | 56,461 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,237 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,220,818 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,829 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,207 |
| Name a Valid Element | 0 | - | 4.64 | 69,581 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,382 |
| Star Wars Quotes | 0 | - | 4.84 | 173,451 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,704 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,990 |
| Name a Country A-Z | 0 | - | 5.00 | 240,452 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,509 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,120 |
| Birthstones by Month | 0 | - | 4.41 | 80,487 |
| Elements by Symbol | 0 | - | 4.92 | 195,543 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,646 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,469 |
| Noble Gases | 0 | - | 4.89 | 77,456 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,058 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,926 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,890 |
| Name the Virus | 0 | - | 4.86 | 76,262 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,142 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,298 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,703 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 27,741 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,460 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,702 |
| Companies by Country | 0 | - | 4.56 | 118,722 |
| German Groups of Things | 0 | - | 4.46 | 38,306 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.18 | 47,603 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,874 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,031 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,959 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 664,894 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,483 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,235 |
| Citrus Fruits | 0 | - | 3.65 | 41,950 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,593 |
| Elemental Words | 0 | - | 4.96 | 51,994 |
| Metals of Antiquity | 0 | - | 4.94 | 92,915 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,388 |
| The Mars Quiz | 0 | - | 4.55 | 18,576 |
| The Saturn Quiz | 0 | - | 4.54 | 11,502 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,402 |
| Popular Royal Names | 0 | - | 4.27 | 124,483 |
| First Names of Painters | 0 | - | 4.43 | 59,602 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,301 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,422 |
| Famous Duos #2 | 0 | - | 4.21 | 116,573 |
| Famous Duos Quiz #1 | 0 | - | 4.15 | 83,788 |
| Character to Author #1 | 0 | - | 4.52 | 43,211 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,298 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,748 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,842 |
| Famous Scientists | 0 | - | 4.57 | 42,454 |
| Astronomy True or False | 0 | - | 4.38 | 36,267 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,640 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,292 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,017 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,625 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,144 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,190 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,139 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,248 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,274 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,847 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,235 |
| Books by Country Quiz | 0 | - | 4.30 | 32,178 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,823 |
| Colors by Letter | 0 | - | 4.25 | 162,037 |
| Sibling Actors | 0 | - | 4.12 | 47,444 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,367 |
| British Groups of Things | 0 | - | 4.25 | 82,676 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,803 |
| Countries with Four Letters | 0 | - | 4.99 | 418,560 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,120 |
| Random Country to Capital | 0 | - | 4.98 | 911,691 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,544 |
| Name a Valid World City | 0 | - | 4.83 | 70,140 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,861 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,859 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,204 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,968 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,362 |
| Countries with NO Military | 0 | - | 4.97 | 61,180 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,773 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,912 |
| NATO Countries | 0 | - | 4.98 | 275,784 |
| EU Countries Quiz | 0 | - | 4.99 | 269,969 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,075 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,261 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,571 |
| The Venus Quiz | 0 | - | 4.21 | 6,888 |
| Scientific Names | 0 | - | 4.32 | 78,166 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,053 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,905 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,314 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,203 |
| Body Part Cliches | 0 | - | 4.43 | 123,057 |
| Bones of the Human Body | 0 | - | 4.57 | 37,325 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,123 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,606 |
| WWII First Names | 0 | - | 4.44 | 41,564 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,932 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,807 |
| Best-Selling Breakfast Cereals | 0 | - | 3.68 | 92,777 |
| Islands by Country #1 | 0 | - | 4.87 | 174,496 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,928 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,290 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,341 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,092 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,796 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,520 |
| Character to Author #2 | 0 | - | 4.55 | 30,275 |
| Superhero Decoder | 0 | - | 4.36 | 54,333 |
| Batman Actors Quiz | 0 | - | 4.27 | 47,819 |
| Marvel Superheroes | 0 | - | 4.37 | 294,677 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,874 |
| Avengers Team Members | 0 | - | 4.05 | 77,059 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,317 |
| X-Men Mutants | 0 | - | 4.05 | 46,863 |
| The Spiderman Quiz | 0 | - | 4.31 | 71,931 |
| Car Model to Make | 0 | - | 4.18 | 195,165 |
| Famous Billionaires | 0 | - | 4.14 | 67,253 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,279 |
| Countries by Emojis | 0 | - | 4.99 | 236,206 |
| California Groups of Things | 0 | - | 4.25 | 45,273 |
| New York Groups of Things | 0 | - | 4.38 | 59,944 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,245 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,334 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,447 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,221 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,592 |
| Cities that End in T by Clue | 0 | - | 4.70 | 17,012 |
| Cities that End in G by Clue | 0 | - | 4.60 | 21,290 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,303 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,118 |
| Country Chain | 0 | - | 4.96 | 215,744 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,827 |
| Capital Cities Chain | 0 | - | 4.84 | 81,925 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,133 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,006 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,221 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,835 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,564 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,428 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,603 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,817 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,423 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,506 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,034 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,242 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,280 |
| Coldest World Capitals | 0 | - | 4.95 | 133,050 |
| World Currency Quiz | 0 | - | 4.92 | 298,537 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,891 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,104 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,755 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,147 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,699 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,474 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,936 |
| Buddhist Countries | 0 | - | 4.96 | 142,962 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,109 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,497 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,672 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,212 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,264 |
| Word Chain - Science | 0 | - | 4.59 | 54,398 |
