| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,603 |
| Random Symbol to Element | 0 | - | 4.88 | 92,109 |
| Countries with Four Letters | 0 | - | 4.99 | 417,994 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,688 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,709 |
| Country Chain | 0 | - | 4.96 | 215,542 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,992 |
| International Scientific Units | 0 | - | 4.95 | 155,034 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,025 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,302 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,539 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,105 |
| Word Chain - Science | 0 | - | 4.59 | 54,349 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,205 |
| First Names of Scientists | 0 | - | 4.50 | 56,421 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,217,003 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,802 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,105 |
| Name a Valid Element | 0 | - | 4.64 | 69,501 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,389 |
| Largest World Cities With Five Letters | 0 | - | 4.52 | 66,342 |
| Groups of Two - Science | 0 | - | 4.26 | 48,116 |
| Science Decoder | 0 | - | 4.52 | 28,634 |
| Elements by Symbol Quiz | 0 | - | 4.92 | 195,218 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,394 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,329 |
| Noble Gases | 0 | - | 4.89 | 77,303 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 63,932 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,716 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,716 |
| Name the Virus | 0 | - | 4.86 | 76,159 |
| Body Part Words | 0 | - | 4.43 | 145,071 |
| Human Body A-Z | 0 | - | 4.51 | 128,176 |
| Super Short Movie Titles | 0 | - | 4.50 | 115,873 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,681 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,609 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,033 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,438 |
| Four-Letter Acronyms | 0 | - | 4.32 | 112,746 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,292 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,078 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,564 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,700 |
| Famous Scientists | 0 | - | 4.57 | 42,387 |
| Citrus Fruits | 0 | - | 3.65 | 41,939 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,527 |
| Elemental Words | 0 | - | 4.96 | 51,923 |
| Metals of Antiquity | 0 | - | 4.94 | 92,809 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,165 |
| Astronomy Decoder | 0 | - | 4.50 | 37,806 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,121 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 268,933 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,367 |
| Astronomy Quiz | 0 | - | 4.89 | 81,563 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,541 |
| Solar System Trivia | 0 | - | 4.93 | 45,892 |
| Body Parts - No Vowels | 0 | - | 4.15 | 25,016 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,060 |
| Five Letter Movie Titles | 0 | - | 4.26 | 73,766 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,802 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,788 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,789 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,044 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,661 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,645 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,246 |
| Three-Letter Acronyms #3 | 0 | - | 4.10 | 29,868 |
| One-Syllable Countries Quiz | 0 | - | 4.36 | 122,325 |
| One Syllable Team Names | 0 | - | 4.18 | 14,163 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,575 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,206 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,068 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,478 |
| Name a Valid World City | 0 | - | 4.83 | 69,981 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,605 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,001 |
| Scientific Names | 0 | - | 4.32 | 78,089 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 85,973 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,893 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,106 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,152 |
| Body Part Cliches | 0 | - | 4.43 | 122,870 |
| Medical Conditions Quiz | 0 | - | 4.78 | 122,992 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,061 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,209 |
| Disney Animated Characters | 0 | - | 4.88 | 598,752 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,199 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,409 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,438 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 66,874 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,465 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,435 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,369 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,441 |
| Islands by Country #1 | 0 | - | 4.87 | 174,386 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,832 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,200 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,273 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,523 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,112 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,255 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,705 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,458 |
| Cold War Decoder | 0 | - | 4.83 | 51,872 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,256 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,557 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,506 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,514 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,800 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,059 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,210 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,532 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,156 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,260 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,778 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,086 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,267 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,223 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,105 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,194 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,039 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,322 |
| Science Multiple Choice #2 | 0 | - | 4.40 | 36,296 |
| Science Multiple Choice #3 | 0 | - | 4.38 | 34,332 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,546 |
| Environmental Issues | 0 | - | 4.54 | 26,708 |
| Chuck Norris Facts | 0 | - | 4.50 | 7,990 |
| Two Letter Answers #2 | 0 | - | 4.43 | 85,966 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,364 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,036 |
| "Son" Last Names | 0 | - | 4.48 | 41,674 |
| Shared First Names #2 | 0 | - | 4.53 | 44,937 |
| People with J Initials | 0 | - | 4.51 | 55,194 |
| History Analogies #1 | 0 | - | 4.53 | 89,740 |
| History Analogies #2 | 0 | - | 4.49 | 76,957 |
| History Analogies #3 | 0 | - | 4.61 | 80,394 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,688 |
| English Idioms #1 | 0 | - | 4.45 | 144,172 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,216 |
| Clothing Idioms | 0 | - | 4.41 | 34,040 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,171 |
| Are You a Nerd? | 0 | - | 4.35 | 44,458 |
| The Eleven Colors | 0 | - | 4.73 | 233,143 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,302 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,358 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 76,909 |
| The Only Country ... | 0 | - | 4.91 | 79,694 |
| King in the Answers | 0 | - | 4.42 | 49,531 |
| Super in the Answers | 0 | - | 4.52 | 109,166 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,050 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,690 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,265 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,373 |
| Six Letter Geography #3 | 0 | - | 4.53 | 81,393 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,906 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,608 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,427 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,242 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,825 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,500 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,084 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,533 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,419 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,214 |
| Random Countries by Borders | 0 | - | 4.99 | 81,566 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,848 |
| Random History by Country | 0 | - | 4.53 | 34,634 |
| Random Name a Valid Country | 0 | - | 4.99 | 202,962 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,483 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 51,107 |
| Geography Decoder | 0 | - | 4.53 | 75,300 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,344 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,286 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,045 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,064 |
| Fruits by Picture | 0 | - | 4.20 | 804,278 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,116 |
| Answers are Beverages | 0 | - | 4.10 | 60,993 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,688 |
| Types of Food | 0 | - | 4.24 | 89,056 |
| The Foods they Ate | 0 | - | 4.03 | 69,161 |
| Animals Used in Food | 0 | - | 4.29 | 77,572 |
| Most Popular Fruits | 0 | - | 4.16 | 96,136 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,619 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,630 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,239 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,490 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,225 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,506 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,051 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,625 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,924 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 56,698 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,326 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,617 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,137 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,072 |
| Elements by Picture | 0 | - | 4.27 | 69,479 |
| Medical Acronyms | 0 | - | 4.43 | 95,714 |
| Medical Vocabulary | 0 | - | 4.54 | 58,465 |
