| International Scientific Units | 0 | - | 4.95 | 157,476 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,038 |
| Random Symbol to Element | 0 | - | 4.88 | 93,454 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,459 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,086 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,124 |
| Word Chain - Science | 0 | - | 4.59 | 55,009 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,250,461 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,605 |
| Elements by Symbol | 0 | - | 4.92 | 197,837 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,053 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,442 |
| Noble Gases | 0 | - | 4.89 | 78,494 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,793 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,810 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,988 |
| The Sun Quiz | 0 | - | 4.93 | 34,839 |
| Name the Virus | 0 | - | 4.87 | 76,912 |
| Groups of Two - Science | 0 | - | 4.26 | 48,384 |
| Science Decoder | 0 | - | 4.52 | 28,810 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,849 |
| Famous Scientists | 0 | - | 4.57 | 42,740 |
| First Names of Scientists | 0 | - | 4.51 | 57,035 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,115 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,150 |
| Name a Valid Element | 0 | - | 4.67 | 70,203 |
| Citrus Fruits | 0 | - | 3.64 | 42,103 |
| Scientific Names | 0 | - | 4.32 | 78,587 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,109 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,892 |
| Elemental Words | 0 | - | 4.96 | 52,409 |
| Metals of Antiquity | 0 | - | 4.95 | 93,654 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,793 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,769 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,369 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,575 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 276,080 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,632 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,757 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,351 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,044 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,186 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,657 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,859 |
| Astronomy Decoder | 0 | - | 4.48 | 38,126 |
| Body Part Cliches | 0 | - | 4.44 | 123,573 |
| Bones of the Human Body | 0 | - | 4.51 | 43,144 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,463 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,598 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,606 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,026 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,134 |
| Astronomy Quiz | 0 | - | 4.90 | 82,894 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,784 |
| Solar System Trivia | 0 | - | 4.93 | 46,863 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,129 |
| Italian Name Translation | 0 | - | 4.83 | 47,348 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,095 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,639 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,150 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,925 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,976 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,434 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,328 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,138 |
| Name a Valid World City | 0 | - | 4.83 | 71,543 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,049 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,636,354 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,685 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,794 |
| Disney Animated Characters | 0 | - | 4.88 | 602,067 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,782 |
| Countries with Four Letters | 0 | - | 4.99 | 423,670 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,667 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,719 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,026 |
| Environmental Issues | 0 | - | 4.54 | 26,869 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,440 |
| People With Place Names | 0 | - | 4.01 | 39,729 |
| Are You a Nerd? | 0 | - | 4.35 | 44,983 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,527 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,505 |
| Answers are Beverages | 0 | - | 4.06 | 61,452 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,559 |
| Types of Food | 0 | - | 4.25 | 90,140 |
| The Foods they Ate | 0 | - | 4.03 | 69,515 |
| Animals Used in Food | 0 | - | 4.28 | 78,258 |
| Most Popular Fruits | 0 | - | 4.16 | 96,787 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,851 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,403 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,563 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,378 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,785 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,807 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,174 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,341 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,558 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,587 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,033 |
| "Son" Last Names | 0 | - | 4.47 | 42,513 |
| Shared First Names #2 | 0 | - | 4.53 | 45,648 |
| People with J Initials | 0 | - | 4.51 | 55,513 |
| History Analogies #1 | 0 | - | 4.53 | 90,080 |
| History Analogies #2 | 0 | - | 4.49 | 77,329 |
| History Analogies #3 | 0 | - | 4.61 | 80,775 |
| English Idioms #1 | 0 | - | 4.45 | 146,147 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,456 |
| Clothing Idioms | 0 | - | 4.41 | 34,259 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,039 |
| European History for Dummies | 0 | - | 4.83 | 90,116 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,697 |
| Islands by Country #1 | 0 | - | 4.90 | 175,613 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,769 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,148 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,906 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,666 |
| The Eleven Colors | 0 | - | 4.74 | 235,519 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,245 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,916 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,223 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,536 |
| King in the Answers | 0 | - | 4.42 | 50,251 |
| Super in the Answers | 0 | - | 4.52 | 110,551 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,525 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,671 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,736 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,727 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,802 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,662 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,237 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,589 |
| Country Chain | 0 | - | 4.96 | 217,747 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,769 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,071 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,615 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,608 |
| Random History by Country | 0 | - | 4.53 | 34,918 |
| Geography Decoder | 0 | - | 4.53 | 75,734 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,734 |
| Cold War Decoder | 0 | - | 4.83 | 52,468 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,649 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,364 |
| Fruits by Picture | 0 | - | 4.19 | 808,164 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,541 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,996 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,192 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,006 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,843 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,681 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,705 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,857 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,850 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,099 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,837 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,209 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,920 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,311 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 728,312 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,039 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,107 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,387 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,144 |
| Dr. Seuss Quotes | 0 | - | 4.38 | 9,081 |
| 40 Completely Random Quotes | 0 | - | 4.40 | 29,250 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,389 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,246 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,400 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,316 |
| The Only Country ... | 0 | - | 4.91 | 81,483 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,696 |
| Random Countries by Borders | 0 | - | 4.99 | 82,721 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,375 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,544 |
| Random Point on Land to Country | 0 | - | 4.99 | 236,000 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 52,437 |
| Most Popular Herbs and Spices | 0 | - | 3.94 | 75,904 |
| U.S. Supermarket Products | 0 | - | 3.85 | 59,563 |
| Jelly Belly Official 50 Flavors | 0 | - | 4.19 | 19,743 |
| Types of Jam | 0 | - | 3.78 | 35,325 |
| Most Popular Types of Tea | 0 | - | 4.04 | 11,098 |
| Coffee Knowledge | 0 | - | 4.18 | 18,860 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,241 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,874 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,835 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,766 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,420 |
| Name a Valid Island Country | 0 | - | 4.96 | 115,190 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,998 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,092 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,396 |
| Elements by Picture | 0 | - | 4.27 | 70,115 |
| Medical Acronyms | 0 | - | 4.43 | 97,027 |
| Medical Vocabulary | 0 | - | 4.54 | 59,268 |
| History General Knowledge #13 | 0 | - | 4.69 | 49,673 |
| Two Letter Answers #4 | 0 | - | 4.27 | 89,021 |
| Two Letter Answers #1 | 0 | - | 4.31 | 108,907 |
| Three Letter Answers #2 | 0 | - | 4.09 | 71,797 |
| Two Letter Answers #3 | 0 | - | 4.13 | 82,764 |
| Three Letter Answers #1 | 0 | - | 4.32 | 74,102 |
| Historical Middle Names | 0 | - | 4.16 | 35,931 |
