| Science General Knowledge #2 | 0 | - | 4.48 | 119,021 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,032 |
| Random Symbol to Element | 0 | - | 4.88 | 93,252 |
| International Scientific Units | 0 | - | 4.95 | 157,368 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,997 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,119 |
| Word Chain - Science | 0 | - | 4.59 | 54,980 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,248,663 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,047 |
| First Names of Scientists | 0 | - | 4.51 | 56,990 |
| Groups of Two - Science | 0 | - | 4.26 | 48,370 |
| Science Decoder | 0 | - | 4.52 | 28,793 |
| Elements by Symbol | 0 | - | 4.92 | 197,703 |
| Speed Symbol by Element | 0 | - | 4.90 | 104,965 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,101 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,398 |
| Noble Gases | 0 | - | 4.89 | 78,434 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,741 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,697 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,925 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,094 |
| Name a Valid Element | 0 | - | 4.67 | 70,175 |
| Name the Virus | 0 | - | 4.87 | 76,886 |
| Bread Alone | 0 | - | 4.48 | 27,152 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 263,999 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 133,245 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 187,078 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 152,206 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,566 |
| Geography General Knowledge #8 | 0 | - | 4.44 | 150,713 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 157,120 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,523 |
| Geography General Knowledge #12 | 0 | - | 4.78 | 124,713 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 68,091 |
| History General Knowledge #1 | 0 | - | 4.55 | 128,551 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,538 |
| History General Knowledge #6 | 0 | - | 4.49 | 89,033 |
| History General Knowledge #10 | 0 | - | 4.43 | 78,015 |
| History General Knowledge #11 | 0 | - | 4.45 | 72,832 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,801 |
| Famous Scientists | 0 | - | 4.57 | 42,721 |
| Country Decoders #1 | 0 | - | 4.45 | 43,730 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,616 |
| Citrus Fruits | 0 | - | 3.63 | 42,093 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,076 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,879 |
| Elemental Words | 0 | - | 4.97 | 52,386 |
| Metals of Antiquity | 0 | - | 4.95 | 93,610 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,754 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,735 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,329 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,456 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 275,770 |
| How Do You Like Them Apples? | 0 | - | 4.33 | 23,059 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 180,927 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 149,077 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 132,038 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,719 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,651 |
| History General Knowledge #8 | 0 | - | 4.32 | 84,087 |
| History General Knowledge #9 | 0 | - | 4.40 | 80,012 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,326 |
| History General Knowledge #2 | 0 | - | 4.32 | 113,161 |
| History General Knowledge #4 | 0 | - | 4.33 | 110,929 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,566 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,819 |
| Astronomy Decoder | 0 | - | 4.49 | 38,106 |
| Scientific Names | 0 | - | 4.32 | 78,564 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,632,685 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,893 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,922 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,921 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,712 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,035 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,095 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,618 |
| Astronomy Quiz | 0 | - | 4.90 | 82,822 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,679 |
| Solar System Trivia | 0 | - | 4.93 | 46,812 |
| Body Part Cliches | 0 | - | 4.44 | 123,549 |
| Bones of the Human Body | 0 | - | 4.51 | 43,039 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,329 |
| Italian Name Translation | 0 | - | 4.83 | 47,236 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,042 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,451 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,356 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,923 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,798 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,472 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,900 |
| Disney Animated Characters | 0 | - | 4.88 | 601,935 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,588 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,810 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,841 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,280 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,543 |
| Countries with Four Letters | 0 | - | 4.99 | 423,330 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,252 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,107 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,543 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 67,955 |
| Name a Valid World City | 0 | - | 4.83 | 71,463 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,990 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,921 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,129 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,962 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,941 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,500 |
| Islands by Country #1 | 0 | - | 4.88 | 175,479 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,642 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,040 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,810 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,678 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,713 |
| Country Decoders #2 | 0 | - | 4.12 | 26,840 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,998 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,823 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,065 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,350 |
| Country Chain | 0 | - | 4.96 | 217,398 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,394 |
| Cold War Decoder | 0 | - | 4.83 | 52,444 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,467 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,153 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,664 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,254 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,478 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,647 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,657 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,969 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,713 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,073 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,850 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,220 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,429 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,257 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,369 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,750 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,771 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,645 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,689 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,107 |
| Environmental Issues | 0 | - | 4.54 | 26,866 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,777 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,545 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,534 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,564 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 45,996 |
| "Son" Last Names | 0 | - | 4.47 | 42,475 |
| Shared First Names #2 | 0 | - | 4.53 | 45,601 |
| People with J Initials | 0 | - | 4.51 | 55,505 |
| History Analogies #1 | 0 | - | 4.53 | 90,034 |
| History Analogies #2 | 0 | - | 4.49 | 77,294 |
| History Analogies #3 | 0 | - | 4.61 | 80,731 |
| English Idioms #1 | 0 | - | 4.45 | 146,098 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,447 |
| Clothing Idioms | 0 | - | 4.41 | 34,245 |
| Are You a Nerd? | 0 | - | 4.35 | 44,964 |
| The Eleven Colors | 0 | - | 4.74 | 235,455 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,203 |
| King in the Answers | 0 | - | 4.42 | 50,229 |
| Super in the Answers | 0 | - | 4.52 | 110,507 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,494 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,622 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,706 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,706 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,785 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,626 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,208 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,576 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,726 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,052 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,605 |
| Random History by Country | 0 | - | 4.53 | 34,896 |
| Geography Decoder | 0 | - | 4.53 | 75,711 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,713 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,632 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,352 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,498 |
| Fruits by Picture | 0 | - | 4.19 | 807,974 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,484 |
| Answers are Beverages | 0 | - | 4.06 | 61,434 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,532 |
| Types of Food | 0 | - | 4.25 | 90,095 |
| The Foods they Ate | 0 | - | 4.03 | 69,499 |
| Animals Used in Food | 0 | - | 4.28 | 78,216 |
| Most Popular Fruits | 0 | - | 4.16 | 96,755 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,841 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,366 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,969 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,752 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,018 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,314 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,112 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,081 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,174 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,346 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,131 |
| The Only Country ... | 0 | - | 4.91 | 81,401 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,586 |
