| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,091,347 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,170 |
| Random Symbol to Element | 0 | - | 4.88 | 92,295 |
| 7 Deadly Sins | 0 | - | 4.88 | 395,471 |
| Countries With One Word and Two U's | 0 | - | 4.47 | 50,465 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,272 |
| Astronomy Decoder | 0 | - | 4.50 | 37,867 |
| Parties (Mostly Political) | 0 | - | 4.14 | 20,311 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,308 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,680 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,135 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,494 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 333,348 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,316 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,557 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,771 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,008 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,508 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,903 |
| Heart in the Answers | 0 | - | 4.02 | 43,073 |
| Mother in the Answers | 0 | - | 4.05 | 34,711 |
| Bear in the Answers | 0 | - | 4.29 | 61,637 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,627 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,745 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,588 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,327 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,815 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,171 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,642 |
| International Scientific Units | 0 | - | 4.95 | 155,499 |
| First Names of Scientists | 0 | - | 4.50 | 56,497 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,290 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,222,537 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,842 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,260 |
| Name a Valid Element | 0 | - | 4.64 | 69,607 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,396 |
| Star Wars Quotes | 0 | - | 4.84 | 173,562 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,796 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,067 |
| Name a Country A-Z | 0 | - | 5.00 | 240,665 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,633 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,248 |
| Birthstones by Month | 0 | - | 4.41 | 80,499 |
| Elements by Symbol | 0 | - | 4.92 | 195,685 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,739 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,516 |
| Noble Gases | 0 | - | 4.89 | 77,513 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,106 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,054 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,968 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,255 |
| Name the Virus | 0 | - | 4.86 | 76,296 |
| Sea in the Answers | 0 | - | 4.10 | 48,583 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,154 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,344 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,711 |
| Saint in the Answers | 0 | - | 4.10 | 44,174 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,477 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 361,866 |
| Companies by Country | 0 | - | 4.56 | 118,783 |
| Groups of Things - The Bible | 0 | - | 4.43 | 54,837 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,891 |
| Word Chain - The Bible | 0 | - | 4.44 | 41,050 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,985 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 665,316 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,517 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,325 |
| Citrus Fruits | 0 | - | 3.65 | 41,961 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,631 |
| Elemental Words | 0 | - | 4.96 | 52,022 |
| Metals of Antiquity | 0 | - | 4.94 | 92,961 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,590,712 |
| Popular Royal Names | 0 | - | 4.27 | 124,515 |
| First Names of Painters | 0 | - | 4.43 | 59,615 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,347 |
| Famous Lines of Poetry #2 | 0 | - | 4.55 | 18,430 |
| Character to Author #1 | 0 | - | 4.52 | 43,269 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,365 |
| U.S. Synonymous Trademarks | 0 | - | 4.06 | 66,760 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,896 |
| Famous Scientists | 0 | - | 4.57 | 42,477 |
| Astronomy Quiz | 0 | - | 4.90 | 81,809 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,879 |
| Solar System Trivia | 0 | - | 4.93 | 46,102 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,968 |
| Books with Names in the Title #1 | 0 | - | 4.26 | 70,307 |
| First Names of Authors #1 | 0 | - | 4.20 | 59,033 |
| First Names of Authors #2 | 0 | - | 4.24 | 36,640 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,089,047 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,387 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,292 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,351 |
| Literary Quotes #2 | 0 | - | 4.18 | 24,282 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,854 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,544 |
| Books by Country Quiz | 0 | - | 4.30 | 32,178 |
| Stores in the Mall #1 | 0 | - | 3.89 | 45,826 |
| Colors by Letter | 0 | - | 4.25 | 162,085 |
| Sibling Actors | 0 | - | 4.12 | 47,450 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,399 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,018 |
| Countries with Four Letters | 0 | - | 4.99 | 418,843 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,150 |
| Random Country to Capital | 0 | - | 4.98 | 912,266 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,569 |
| Name a Valid World City | 0 | - | 4.83 | 70,223 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,873 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,997 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,325 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,208 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,715 |
| Countries with NO Military | 0 | - | 4.97 | 61,236 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,883 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,960 |
| NATO Countries | 0 | - | 4.98 | 276,220 |
| EU Countries Quiz | 0 | - | 4.99 | 270,258 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,192 |
| Books of the Protestant Bible | 0 | - | 4.89 | 207,495 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,790 |
| Scientific Names | 0 | - | 4.32 | 78,197 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,085 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,920 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,444 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,223 |
| Body Part Cliches | 0 | - | 4.43 | 123,104 |
| Bones of the Human Body | 0 | - | 4.54 | 39,628 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,176 |
| Dog in the Answers | 0 | - | 4.16 | 68,369 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,264 |
| WWII First Names | 0 | - | 4.44 | 41,578 |
| Title in the Lyrics - Disney Songs | 0 | - | 4.36 | 128,971 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,815 |
| Best-Selling Breakfast Cereals | 0 | - | 3.68 | 92,790 |
| Islands by Country #1 | 0 | - | 4.87 | 174,553 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,976 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,322 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,370 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,148 |
| Who Did These Sidekicks Work With? | 0 | - | 4.24 | 109,830 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,581 |
| Character to Author #2 | 0 | - | 4.55 | 30,296 |
| Superhero Decoder | 0 | - | 4.36 | 54,358 |
| Batman Actors Quiz | 0 | - | 4.27 | 47,844 |
| Marvel Superheroes | 0 | - | 4.37 | 294,846 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 114,963 |
| Avengers Team Members | 0 | - | 4.07 | 77,106 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,408 |
| X-Men Mutants | 0 | - | 4.05 | 46,896 |
| The Spiderman Quiz | 0 | - | 4.31 | 72,014 |
| Car Model to Make | 0 | - | 4.18 | 195,252 |
| Famous Billionaires | 0 | - | 4.14 | 67,262 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,320 |
| Countries by Emojis | 0 | - | 4.99 | 236,763 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,432 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,554 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,243 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,609 |
| Cities that End in T by Clue | 0 | - | 4.70 | 17,049 |
| Cities that End in G by Clue | 0 | - | 4.60 | 21,322 |
| Country Chain | 0 | - | 4.96 | 215,849 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,037 |
| Capital Cities Chain | 0 | - | 4.84 | 81,971 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,175 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,053 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,263 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,993 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,929 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,611 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,795 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,966 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,548 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,627 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,162 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,251 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,363 |
| Coldest World Capitals | 0 | - | 4.95 | 133,078 |
| World Currency Quiz | 0 | - | 4.92 | 298,830 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,060 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,207 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,795 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,200 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,771 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,574 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,998 |
| Buddhist Countries | 0 | - | 4.96 | 143,022 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,137 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,666 |
| Science General Knowledge #2 | 0 | - | 4.48 | 116,953 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,322 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,293 |
| Word Chain - Science | 0 | - | 4.59 | 54,431 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,384 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,361 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,862 |
| Environmental Issues | 0 | - | 4.54 | 26,734 |
| MCU Infinity Stones | 0 | - | 4.19 | 19,929 |
| U.S. Baby Boy Names by Letter | 0 | - | 3.86 | 96,639 |
| U.S. Baby Girls Names by Letter | 0 | - | 3.71 | 75,277 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,271 |
