| Science General Knowledge #3 | 0 | - | 4.56 | 109,540 |
| Random Symbol to Element | 0 | - | 4.88 | 93,870 |
| International Scientific Units | 0 | - | 4.95 | 158,236 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,240 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,045 |
| Word Chain - Science | 0 | - | 4.59 | 55,130 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,258,915 |
| The Sun Quiz | 0 | - | 4.93 | 35,057 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,451 |
| First Names of Scientists | 0 | - | 4.51 | 57,190 |
| Groups of Two - Science | 0 | - | 4.26 | 48,449 |
| Science Decoder | 0 | - | 4.52 | 28,854 |
| Elements by Symbol | 0 | - | 4.92 | 198,547 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,505 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,191 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,741 |
| Noble Gases | 0 | - | 4.89 | 78,791 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 65,025 |
| Periodic Table Symbols | 0 | - | 4.97 | 80,030 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,360 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,433 |
| Name a Valid Element | 0 | - | 4.67 | 70,394 |
| Name the Virus | 0 | - | 4.87 | 77,081 |
| Bread Alone | 0 | - | 4.48 | 27,191 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 264,873 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 133,632 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 187,599 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 152,609 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,986 |
| Geography General Knowledge #8 | 0 | - | 4.44 | 151,110 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 157,528 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,850 |
| Geography General Knowledge #12 | 0 | - | 4.78 | 125,242 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 68,340 |
| History General Knowledge #1 | 0 | - | 4.55 | 129,126 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,973 |
| History General Knowledge #6 | 0 | - | 4.49 | 89,321 |
| History General Knowledge #10 | 0 | - | 4.43 | 78,296 |
| History General Knowledge #11 | 0 | - | 4.45 | 73,111 |
| History General Knowledge #13 | 0 | - | 4.69 | 50,011 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 81,108 |
| Famous Scientists | 0 | - | 4.57 | 42,839 |
| Country Decoders #1 | 0 | - | 4.45 | 43,796 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,958 |
| Citrus Fruits | 0 | - | 3.66 | 42,151 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,262 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,958 |
| Elemental Words | 0 | - | 4.97 | 52,537 |
| Metals of Antiquity | 0 | - | 4.95 | 93,883 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 177,020 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,877 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 88,519 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,717 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 277,683 |
| How Do You Like Them Apples? | 0 | - | 4.33 | 23,092 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 181,357 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 149,455 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 132,355 |
| History General Knowledge #5 | 0 | - | 4.39 | 107,069 |
| History General Knowledge #7 | 0 | - | 4.35 | 89,082 |
| History General Knowledge #8 | 0 | - | 4.32 | 84,339 |
| History General Knowledge #9 | 0 | - | 4.40 | 80,272 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,508 |
| History General Knowledge #2 | 0 | - | 4.32 | 113,555 |
| History General Knowledge #4 | 0 | - | 4.33 | 111,499 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,947 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,076 |
| Astronomy Decoder | 0 | - | 4.48 | 38,208 |
| Scientific Names | 0 | - | 4.32 | 78,718 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,465 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,650,422 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 89,124 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,967 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,958 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,938 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,088 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,713 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,797 |
| Astronomy Quiz | 0 | - | 4.90 | 83,212 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,347 |
| Solar System Trivia | 0 | - | 4.93 | 47,112 |
| Body Part Cliches | 0 | - | 4.44 | 123,654 |
| Bones of the Human Body | 0 | - | 4.51 | 43,502 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,844 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,764 |
| Italian Name Translation | 0 | - | 4.83 | 47,885 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,469 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,119,595 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 167,930 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,205 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,527 |
| 7 Deadly Sins | 0 | - | 4.88 | 403,812 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,260 |
| Disney Animated Characters | 0 | - | 4.88 | 602,782 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,700 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,837 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,861 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,035 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,091 |
| Countries with Four Letters | 0 | - | 4.99 | 425,526 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,786 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,285 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,880 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,294 |
| Name a Valid World City | 0 | - | 4.85 | 71,923 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,908 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,156 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,381 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,408 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 306,481 |
| Islands by Country #1 | 0 | - | 4.90 | 176,258 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,187 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,509 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,356 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,720 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,753 |
| Country Decoders #2 | 0 | - | 4.12 | 26,876 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 31,048 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,323 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,897 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,301 |
| Country Chain | 0 | - | 4.96 | 218,359 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,749 |
| Cold War Decoder | 0 | - | 4.83 | 52,614 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,872 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,375 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,847 |
| Name a Valid Country #1 | 0 | - | 4.99 | 294,952 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,981 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,981 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,862 |
| Name a Valid Country #6 | 0 | - | 4.95 | 144,794 |
| Name a Valid Country #7 | 0 | - | 4.91 | 131,727 |
| Name a Valid Country #8 | 0 | - | 4.86 | 100,849 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,699 |
| Name a Valid Country #10 | 0 | - | 4.93 | 44,155 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,494 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,740 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,432 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,936 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,939 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,750 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,820 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,420 |
| Environmental Issues | 0 | - | 4.54 | 26,905 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 741,149 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,671 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,711 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,633 |
| People With Place Names | 0 | - | 4.01 | 39,858 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,280 |
| "Son" Last Names | 0 | - | 4.47 | 42,708 |
| Shared First Names #2 | 0 | - | 4.53 | 45,850 |
| People with J Initials | 0 | - | 4.51 | 55,595 |
| History Analogies #1 | 0 | - | 4.53 | 90,368 |
| History Analogies #2 | 0 | - | 4.49 | 77,486 |
| History Analogies #3 | 0 | - | 4.61 | 80,929 |
| English Idioms #1 | 0 | - | 4.45 | 146,451 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,537 |
| Clothing Idioms | 0 | - | 4.41 | 34,345 |
| Are You a Nerd? | 0 | - | 4.35 | 45,130 |
| The Eleven Colors | 0 | - | 4.74 | 235,909 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,466 |
| King in the Answers | 0 | - | 4.42 | 50,348 |
| Super in the Answers | 0 | - | 4.52 | 110,700 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,680 |
| Five Letter Geography #3 | 0 | - | 4.62 | 131,994 |
| Six Letter Geography #1 | 0 | - | 4.42 | 115,005 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,955 |
| Six Letter Geography #3 | 0 | - | 4.52 | 82,008 |
| Seven Letter Geography #1 | 0 | - | 4.48 | 80,298 |
| Seven Letter Geography #3 | 0 | - | 4.51 | 38,865 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,726 |
| Five Letter Geography #1 | 0 | - | 4.48 | 152,046 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,244 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,715 |
| Random History by Country | 0 | - | 4.53 | 34,990 |
| Geography Decoder | 0 | - | 4.53 | 75,820 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,813 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,726 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,431 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,607 |
| Fruits by Picture | 0 | - | 4.19 | 809,036 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,569 |
| Answers are Beverages | 0 | - | 4.06 | 61,546 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,665 |
| Types of Food | 0 | - | 4.25 | 90,279 |
| The Foods they Ate | 0 | - | 4.03 | 69,560 |
| Animals Used in Food | 0 | - | 4.28 | 78,396 |
| Most Popular Fruits | 0 | - | 4.16 | 96,928 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,896 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,579 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,127 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,572 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,168 |
| Movie Title Antonyms #1 | 0 | - | 4.82 | 196,921 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,337 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,072 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,663 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,671 |
