| Random Symbol to Element | 0 | - | 4.88 | 92,631 |
| Countries with Four Letters | 0 | - | 4.99 | 420,869 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,120 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,094,558 |
| Country Chain | 0 | - | 4.96 | 216,568 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,224 |
| International Scientific Units | 0 | - | 4.95 | 156,162 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,515 |
| Science General Knowledge #1 | 0 | - | 4.54 | 164,273 |
| Science General Knowledge #2 | 0 | - | 4.48 | 117,329 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,794 |
| Word Chain - Science | 0 | - | 4.59 | 54,661 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,243 |
| First Names of Scientists | 0 | - | 4.50 | 56,674 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,233,257 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,926 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,598 |
| Name a Valid Element | 0 | - | 4.64 | 69,834 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,388 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 66,709 |
| Groups of Two - Science | 0 | - | 4.26 | 48,230 |
| Science Decoder | 0 | - | 4.52 | 28,697 |
| Elements by Symbol | 0 | - | 4.92 | 196,492 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,271 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,774 |
| Noble Gases | 0 | - | 4.89 | 77,863 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,357 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,692 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,316 |
| Name the Virus | 0 | - | 4.86 | 76,574 |
| Body Part Words | 0 | - | 4.43 | 145,781 |
| Human Body A-Z | 0 | - | 4.51 | 128,937 |
| Super Short Movie Titles | 0 | - | 4.50 | 116,388 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,768 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,753 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,948 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,543 |
| Four-Letter Acronyms | 0 | - | 4.32 | 113,104 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,361 |
| Four Letter African Geography | 0 | - | 4.67 | 18,966 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,297 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,241 |
| Famous Scientists | 0 | - | 4.57 | 42,553 |
| Citrus Fruits | 0 | - | 3.63 | 42,008 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,821 |
| Elemental Words | 0 | - | 4.96 | 52,165 |
| Metals of Antiquity | 0 | - | 4.94 | 93,202 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,491 |
| Astronomy Decoder | 0 | - | 4.50 | 37,961 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,287 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 272,562 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,977 |
| Astronomy Quiz | 0 | - | 4.90 | 82,222 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,598 |
| Solar System Trivia | 0 | - | 4.93 | 46,388 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,236 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,885 |
| Italian Name Translation | 0 | - | 4.81 | 46,122 |
| Five Letter Movie Titles | 0 | - | 4.26 | 73,874 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,406 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,634 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,399 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,958 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,320 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,465 |
| Three Letter Animals Quiz | 0 | - | 3.96 | 300,704 |
| Three-Letter Acronyms #3 | 0 | - | 4.10 | 29,928 |
| One-Syllable Countries Quiz | 0 | - | 4.36 | 122,627 |
| One Syllable Team Names | 0 | - | 4.18 | 14,207 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,720 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,317 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,967 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,706 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,798 |
| Name a Valid World City | 0 | - | 4.83 | 70,754 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,868 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,987 |
| Scientific Names | 0 | - | 4.32 | 78,324 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,303 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,962 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,036 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,384 |
| Body Part Cliches | 0 | - | 4.43 | 123,215 |
| Bones of the Human Body | 0 | - | 4.52 | 41,814 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,914 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,833 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,236 |
| Disney Animated Characters | 0 | - | 4.88 | 600,575 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,407 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,402 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,102 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,464 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,601 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 717,220 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,187 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,122 |
| Islands by Country #1 | 0 | - | 4.87 | 174,923 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,237 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,584 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,550 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,184 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,187 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,460 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,762 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,404 |
| Cold War Decoder | 0 | - | 4.83 | 52,175 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,874 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,853 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,108 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,014 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,634 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,468 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,410 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,600 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,570 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,475 |
| Name a Valid Country #8 | 0 | - | 4.85 | 97,845 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,055 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,406 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,336 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,708 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,449 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,099 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,582 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,446 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,508 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,824 |
| Environmental Issues | 0 | - | 4.54 | 26,785 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,290 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,242 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,467 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,467 |
| "Son" Last Names | 0 | - | 4.47 | 42,008 |
| Shared First Names #2 | 0 | - | 4.53 | 45,185 |
| People with J Initials | 0 | - | 4.51 | 55,366 |
| History Analogies #1 | 0 | - | 4.53 | 89,882 |
| History Analogies #2 | 0 | - | 4.49 | 77,124 |
| History Analogies #3 | 0 | - | 4.61 | 80,566 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,159 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,905 |
| English Idioms #1 | 0 | - | 4.45 | 145,198 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,341 |
| Clothing Idioms | 0 | - | 4.41 | 34,148 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,974 |
| Are You a Nerd? | 0 | - | 4.35 | 44,730 |
| The Eleven Colors | 0 | - | 4.73 | 234,698 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,913 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,153 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,794 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,486 |
| The Only Country ... | 0 | - | 4.91 | 80,580 |
| King in the Answers | 0 | - | 4.42 | 49,876 |
| Super in the Answers | 0 | - | 4.52 | 109,729 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,256 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,056 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,501 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,542 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,616 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,316 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,926 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,509 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,808 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,863 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,536 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,367 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,768 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,510 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,540 |
| Random Countries by Borders | 0 | - | 4.99 | 82,118 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,519 |
| Random History by Country | 0 | - | 4.53 | 34,777 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,339 |
| Random Point on Land to Country | 0 | - | 4.99 | 233,205 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 51,690 |
| Geography Decoder | 0 | - | 4.53 | 75,509 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,531 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,468 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,201 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,319 |
| Fruits by Picture | 0 | - | 4.19 | 806,200 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,343 |
| Answers are Beverages | 0 | - | 4.10 | 61,263 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,371 |
| Types of Food | 0 | - | 4.24 | 89,473 |
| The Foods they Ate | 0 | - | 4.03 | 69,376 |
| Animals Used in Food | 0 | - | 4.28 | 77,931 |
| Most Popular Fruits | 0 | - | 4.16 | 96,480 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,732 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,029 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,280 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,748 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,996 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,090 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,429 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,479 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,592 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,385 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,609 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,813 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,245 |
