| Science General Knowledge #2 | 0 | - | 4.48 | 117,205 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,687 |
| Random Symbol to Element | 0 | - | 4.88 | 92,485 |
| International Scientific Units | 0 | - | 4.95 | 155,948 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,450 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,093,540 |
| Word Chain - Science | 0 | - | 4.59 | 54,594 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,229,741 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,236 |
| First Names of Scientists | 0 | - | 4.50 | 56,622 |
| Groups of Two - Science | 0 | - | 4.26 | 48,204 |
| Science Decoder | 0 | - | 4.52 | 28,683 |
| Elements by Symbol | 0 | - | 4.92 | 196,235 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,060 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,890 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,691 |
| Noble Gases | 0 | - | 4.89 | 77,737 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,276 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,491 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,193 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,468 |
| Name a Valid Element | 0 | - | 4.64 | 69,767 |
| Name the Virus | 0 | - | 4.86 | 76,504 |
| Bread Alone | 0 | - | 4.48 | 27,052 |
| Geography General Knowledge #1 | 0 | - | 4.42 | 262,207 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 132,252 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 186,044 |
| Geography General Knowledge #6 | 0 | - | 4.53 | 151,368 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 158,742 |
| Geography General Knowledge #8 | 0 | - | 4.45 | 149,818 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 156,308 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 109,873 |
| Geography General Knowledge #12 | 0 | - | 4.80 | 124,048 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 67,568 |
| History General Knowledge #1 | 0 | - | 4.55 | 127,746 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,050 |
| History General Knowledge #6 | 0 | - | 4.49 | 88,686 |
| History General Knowledge #10 | 0 | - | 4.43 | 77,607 |
| History General Knowledge #11 | 0 | - | 4.45 | 72,364 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,125 |
| Famous Scientists | 0 | - | 4.57 | 42,527 |
| Country Decoders #1 | 0 | - | 4.44 | 43,606 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 134,841 |
| Citrus Fruits | 0 | - | 3.63 | 41,985 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,748 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,745 |
| Elemental Words | 0 | - | 4.96 | 52,111 |
| Metals of Antiquity | 0 | - | 4.94 | 93,109 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,029 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,422 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,917 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,256 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 271,740 |
| How Do You Like Them Apples? | 0 | - | 4.31 | 23,002 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 180,088 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 148,384 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 131,426 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,256 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,299 |
| History General Knowledge #8 | 0 | - | 4.32 | 83,758 |
| History General Knowledge #9 | 0 | - | 4.40 | 79,660 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,026 |
| History General Knowledge #2 | 0 | - | 4.32 | 112,687 |
| History General Knowledge #4 | 0 | - | 4.33 | 110,394 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,827 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,413 |
| Astronomy Decoder | 0 | - | 4.50 | 37,922 |
| Scientific Names | 0 | - | 4.32 | 78,275 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,602,523 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,540 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,819 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,811 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,245 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,948 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 187,902 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,327 |
| Astronomy Quiz | 0 | - | 4.90 | 82,086 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,346 |
| Solar System Trivia | 0 | - | 4.93 | 46,308 |
| Body Part Cliches | 0 | - | 4.43 | 123,179 |
| Bones of the Human Body | 0 | - | 4.52 | 41,490 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,564 |
| Italian Name Translation | 0 | - | 4.81 | 45,797 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,276 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,093,820 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,256 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,063 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,768 |
| 7 Deadly Sins | 0 | - | 4.88 | 397,493 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,171 |
| Disney Animated Characters | 0 | - | 4.88 | 600,170 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,367 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,751 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,793 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,241 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,884 |
| Countries with Four Letters | 0 | - | 4.99 | 420,134 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,576 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,733 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,994 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,349 |
| Name a Valid World City | 0 | - | 4.83 | 70,527 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,589 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,767 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,088 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,245 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,027 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 303,772 |
| Islands by Country #1 | 0 | - | 4.87 | 174,790 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,158 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,505 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,487 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,584 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.27 | 24,628 |
| Country Decoders #2 | 0 | - | 4.12 | 26,763 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,904 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,969 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,892 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,996 |
| Country Chain | 0 | - | 4.96 | 216,368 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,906 |
| Cold War Decoder | 0 | - | 4.83 | 52,105 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,716 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,766 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,487 |
| Name a Valid Country #1 | 0 | - | 4.99 | 286,651 |
| Name a Valid Country #2 | 0 | - | 4.98 | 248,772 |
| Name a Valid Country #4 | 0 | - | 4.97 | 253,795 |
| Name a Valid Country #5 | 0 | - | 4.99 | 204,186 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,129 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,077 |
| Name a Valid Country #8 | 0 | - | 4.85 | 97,464 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,828 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,168 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,313 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,522 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,196 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,409 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,541 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,421 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,467 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,116 |
| Environmental Issues | 0 | - | 4.54 | 26,772 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 715,733 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,217 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,178 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,447 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,357 |
| "Son" Last Names | 0 | - | 4.47 | 41,932 |
| Shared First Names #2 | 0 | - | 4.53 | 45,128 |
| People with J Initials | 0 | - | 4.51 | 55,324 |
| History Analogies #1 | 0 | - | 4.53 | 89,846 |
| History Analogies #2 | 0 | - | 4.49 | 77,082 |
| History Analogies #3 | 0 | - | 4.61 | 80,527 |
| English Idioms #1 | 0 | - | 4.45 | 145,083 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,309 |
| Clothing Idioms | 0 | - | 4.41 | 34,109 |
| Are You a Nerd? | 0 | - | 4.35 | 44,668 |
| The Eleven Colors | 0 | - | 4.73 | 234,526 |
| King in the Answers | 0 | - | 4.42 | 49,767 |
| Super in the Answers | 0 | - | 4.52 | 109,568 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,211 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,976 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,449 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,513 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,570 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,232 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,847 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,491 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,303 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,730 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,484 |
| Random History by Country | 0 | - | 4.53 | 34,729 |
| Geography Decoder | 0 | - | 4.53 | 75,464 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,488 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,433 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,167 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,288 |
| Fruits by Picture | 0 | - | 4.20 | 805,766 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,321 |
| Answers are Beverages | 0 | - | 4.10 | 61,229 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,340 |
| Types of Food | 0 | - | 4.24 | 89,394 |
| The Foods they Ate | 0 | - | 4.03 | 69,340 |
| Animals Used in Food | 0 | - | 4.28 | 77,883 |
| Most Popular Fruits | 0 | - | 4.16 | 96,431 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,713 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,955 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,697 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,444 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,771 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 194,978 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,862 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,606 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,838 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,666 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,127 |
| The Only Country ... | 0 | - | 4.91 | 80,389 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,274 |
| Random Countries by Borders | 0 | - | 4.99 | 81,928 |
