| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,185 |
| Random Symbol to Element | 0 | - | 4.88 | 93,103 |
| Countries with Four Letters | 0 | - | 4.99 | 422,507 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,351 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,097,638 |
| Country Chain | 0 | - | 4.96 | 217,112 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,285 |
| International Scientific Units | 0 | - | 4.95 | 156,887 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,783 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,047 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,855 |
| Science General Knowledge #3 | 0 | - | 4.56 | 108,766 |
| Word Chain - Science | 0 | - | 4.59 | 54,900 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,859 |
| First Names of Scientists | 0 | - | 4.51 | 56,893 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,243,433 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,034 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,925 |
| Name a Valid Element | 0 | - | 4.64 | 70,058 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,749 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 66,998 |
| Groups of Two - Science | 0 | - | 4.26 | 48,331 |
| Science Decoder | 0 | - | 4.52 | 28,774 |
| Elements by Symbol | 0 | - | 4.92 | 197,284 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,710 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,233 |
| Noble Gases | 0 | - | 4.89 | 78,191 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,599 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,291 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,690 |
| Name the Virus | 0 | - | 4.87 | 76,767 |
| Body Part Words | 0 | - | 4.43 | 145,968 |
| Human Body A-Z | 0 | - | 4.51 | 129,180 |
| Super Short Movie Titles | 0 | - | 4.50 | 116,651 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,833 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,823 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,281 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,608 |
| Four-Letter Acronyms | 0 | - | 4.32 | 113,312 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,418 |
| Four Letter African Geography | 0 | - | 4.67 | 19,313 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,446 |
| Major Taxonomic Ranks | 0 | - | 4.56 | 80,587 |
| Famous Scientists | 0 | - | 4.57 | 42,652 |
| Citrus Fruits | 0 | - | 3.63 | 42,072 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,990 |
| Elemental Words | 0 | - | 4.96 | 52,299 |
| Metals of Antiquity | 0 | - | 4.95 | 93,443 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,701 |
| Astronomy Decoder | 0 | - | 4.49 | 38,064 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,659 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,400 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 274,722 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,367 |
| Astronomy Quiz | 0 | - | 4.90 | 82,624 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,296 |
| Solar System Trivia | 0 | - | 4.93 | 46,674 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,355 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,623,940 |
| Italian Name Translation | 0 | - | 4.83 | 46,860 |
| Five Letter Movie Titles | 0 | - | 4.27 | 73,931 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,808 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,783 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,409 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,531 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,706 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,990 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,967 |
| Three-Letter Acronyms #3 | 0 | - | 4.10 | 29,971 |
| One-Syllable Countries Quiz | 0 | - | 4.36 | 122,855 |
| One Syllable Team Names | 0 | - | 4.18 | 14,230 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,829 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,385 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,164 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,069 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,993 |
| French Food Words | 0 | - | 4.80 | 194,903 |
| Name a Valid World City | 0 | - | 4.83 | 71,217 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,614 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,627 |
| Scientific Names | 0 | - | 4.32 | 78,473 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,570 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,012 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,794 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,521 |
| Body Part Cliches | 0 | - | 4.43 | 123,310 |
| Bones of the Human Body | 0 | - | 4.52 | 42,471 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,184 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,101,863 |
| 7 Deadly Sins | 0 | - | 4.88 | 400,431 |
| Disney Animated Characters | 0 | - | 4.88 | 601,474 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,516 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,903 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,389 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 67,781 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 720,878 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,674 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,081 |
| Islands by Country #1 | 0 | - | 4.88 | 175,297 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,531 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,891 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,729 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,629 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,702 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 182,551 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,807 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,784 |
| Cold War Decoder | 0 | - | 4.83 | 52,362 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,245 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,032 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,717 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,068 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,965 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,756 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,628 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,035 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,463 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,303 |
| Name a Valid Country #8 | 0 | - | 4.86 | 98,671 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,580 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,945 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,387 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,081 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,662 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,116 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,712 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,589 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,948 |
| Environmental Issues | 0 | - | 4.54 | 26,837 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,458 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,424 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,530 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 45,848 |
| Shared First Names #2 | 0 | - | 4.53 | 45,458 |
| People with J Initials | 0 | - | 4.51 | 55,472 |
| History Analogies #1 | 0 | - | 4.53 | 89,966 |
| History Analogies #2 | 0 | - | 4.49 | 77,216 |
| History Analogies #3 | 0 | - | 4.61 | 80,657 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,746 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,044 |
| English Idioms #1 | 0 | - | 4.45 | 145,497 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,404 |
| Clothing Idioms | 0 | - | 4.41 | 34,206 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,330 |
| Are You a Nerd? | 0 | - | 4.35 | 44,887 |
| The Eleven Colors | 0 | - | 4.74 | 235,181 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,113 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,943 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,212 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,648 |
| The Only Country ... | 0 | - | 4.91 | 81,066 |
| King in the Answers | 0 | - | 4.42 | 50,113 |
| Super in the Answers | 0 | - | 4.52 | 110,018 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,410 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,520 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,642 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,653 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,734 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,528 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,116 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,549 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,131 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,886 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,561 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,625 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,971 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,581 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,235 |
| Random Countries by Borders | 0 | - | 4.99 | 82,452 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,610 |
| Random History by Country | 0 | - | 4.53 | 34,865 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,084 |
| Random Point on Land to Country | 0 | - | 4.99 | 235,146 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 52,088 |
| Geography Decoder | 0 | - | 4.53 | 75,647 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,649 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,572 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,298 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,437 |
| Fruits by Picture | 0 | - | 4.19 | 807,350 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,431 |
| Answers are Beverages | 0 | - | 4.10 | 61,372 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,483 |
| Types of Food | 0 | - | 4.25 | 89,985 |
| The Foods they Ate | 0 | - | 4.03 | 69,451 |
| Animals Used in Food | 0 | - | 4.28 | 78,142 |
| Most Popular Fruits | 0 | - | 4.16 | 96,646 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,790 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,244 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,854 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,891 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,127 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,104 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,225 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,000 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,943 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,848 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,856 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,005 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,331 |
