| Science General Knowledge #2 | 0 | - | 4.48 | 118,287 |
| Science General Knowledge #3 | 0 | - | 4.56 | 106,738 |
| Random Symbol to Element | 0 | - | 4.88 | 92,809 |
| International Scientific Units | 0 | - | 4.95 | 156,422 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,629 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,447 |
| Word Chain - Science | 0 | - | 4.59 | 54,781 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,236,342 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,511 |
| First Names of Scientists | 0 | - | 4.50 | 56,724 |
| Groups of Two - Science | 0 | - | 4.26 | 48,271 |
| Science Decoder | 0 | - | 4.52 | 28,734 |
| Elements by Symbol | 0 | - | 4.92 | 196,738 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,422 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,963 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,880 |
| Noble Gases | 0 | - | 4.89 | 77,973 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,436 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,860 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,448 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,706 |
| Name a Valid Element | 0 | - | 4.64 | 69,911 |
| Name the Virus | 0 | - | 4.87 | 76,640 |
| Bread Alone | 0 | - | 4.48 | 27,093 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 262,720 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 132,506 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 186,390 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 151,658 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,014 |
| Geography General Knowledge #8 | 0 | - | 4.45 | 150,079 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 156,598 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,099 |
| Geography General Knowledge #12 | 0 | - | 4.80 | 124,292 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 67,733 |
| History General Knowledge #1 | 0 | - | 4.55 | 128,026 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,229 |
| History General Knowledge #6 | 0 | - | 4.49 | 88,808 |
| History General Knowledge #10 | 0 | - | 4.43 | 77,751 |
| History General Knowledge #11 | 0 | - | 4.45 | 72,525 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,357 |
| Famous Scientists | 0 | - | 4.57 | 42,588 |
| Country Decoders #1 | 0 | - | 4.45 | 43,649 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,082 |
| Citrus Fruits | 0 | - | 3.63 | 42,037 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,873 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,789 |
| Elemental Words | 0 | - | 4.96 | 52,205 |
| Metals of Antiquity | 0 | - | 4.94 | 93,269 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,188 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,500 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,040 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,324 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 273,245 |
| How Do You Like Them Apples? | 0 | - | 4.31 | 23,023 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 180,350 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 148,597 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 131,616 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,425 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,436 |
| History General Knowledge #8 | 0 | - | 4.32 | 83,888 |
| History General Knowledge #9 | 0 | - | 4.40 | 79,795 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,141 |
| History General Knowledge #2 | 0 | - | 4.32 | 112,836 |
| History General Knowledge #4 | 0 | - | 4.33 | 110,571 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,103 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,558 |
| Astronomy Decoder | 0 | - | 4.50 | 37,985 |
| Scientific Names | 0 | - | 4.32 | 78,364 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,612,558 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,654 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,842 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,842 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,405 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,970 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,243 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,425 |
| Astronomy Quiz | 0 | - | 4.90 | 82,340 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,819 |
| Solar System Trivia | 0 | - | 4.93 | 46,453 |
| Body Part Cliches | 0 | - | 4.43 | 123,242 |
| Bones of the Human Body | 0 | - | 4.52 | 42,013 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,017 |
| Italian Name Translation | 0 | - | 4.82 | 46,302 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,516 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,399 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,956 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,666 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,105 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,877 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,427 |
| Disney Animated Characters | 0 | - | 4.88 | 600,887 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,441 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,769 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,813 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,619 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,718 |
| Countries with Four Letters | 0 | - | 4.99 | 421,340 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,807 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,861 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,183 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,561 |
| Name a Valid World City | 0 | - | 4.83 | 70,886 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,084 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,160 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,105 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,506 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,310 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,432 |
| Islands by Country #1 | 0 | - | 4.88 | 175,039 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,319 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,673 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,592 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,603 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,650 |
| Country Decoders #2 | 0 | - | 4.12 | 26,787 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,935 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,316 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,377 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,596 |
| Country Chain | 0 | - | 4.96 | 216,751 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,763 |
| Cold War Decoder | 0 | - | 4.83 | 52,235 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,985 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,903 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,360 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,336 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,870 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,801 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,148 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,821 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,735 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,092 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,194 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,554 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,352 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,830 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,240 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,521 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,621 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,492 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,548 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,331 |
| Environmental Issues | 0 | - | 4.54 | 26,803 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,504 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,338 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,290 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,486 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,537 |
| "Son" Last Names | 0 | - | 4.47 | 42,074 |
| Shared First Names #2 | 0 | - | 4.53 | 45,237 |
| People with J Initials | 0 | - | 4.51 | 55,383 |
| History Analogies #1 | 0 | - | 4.53 | 89,906 |
| History Analogies #2 | 0 | - | 4.49 | 77,150 |
| History Analogies #3 | 0 | - | 4.61 | 80,591 |
| English Idioms #1 | 0 | - | 4.45 | 145,286 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,356 |
| Clothing Idioms | 0 | - | 4.41 | 34,162 |
| Are You a Nerd? | 0 | - | 4.35 | 44,775 |
| The Eleven Colors | 0 | - | 4.74 | 234,850 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,973 |
| King in the Answers | 0 | - | 4.42 | 49,926 |
| Super in the Answers | 0 | - | 4.52 | 109,832 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,296 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,360 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,537 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,565 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,648 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,380 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,986 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,517 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,485 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,843 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,548 |
| Random History by Country | 0 | - | 4.53 | 34,804 |
| Geography Decoder | 0 | - | 4.53 | 75,548 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,563 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,501 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,228 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,351 |
| Fruits by Picture | 0 | - | 4.19 | 806,519 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,373 |
| Answers are Beverages | 0 | - | 4.10 | 61,291 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,394 |
| Types of Food | 0 | - | 4.25 | 89,630 |
| The Foods they Ate | 0 | - | 4.03 | 69,398 |
| Animals Used in Food | 0 | - | 4.28 | 77,996 |
| Most Popular Fruits | 0 | - | 4.16 | 96,521 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,744 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,097 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,798 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,537 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,853 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,359 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,957 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 321,270 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,499 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,890 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,777 |
| The Only Country ... | 0 | - | 4.91 | 80,712 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,755 |
