| Random Symbol to Element | 0 | - | 4.88 | 93,503 |
| International Scientific Units | 0 | - | 4.95 | 157,559 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,072 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,045 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,667 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,347 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,261 |
| Word Chain - Science | 0 | - | 4.59 | 55,032 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,252,130 |
| The Sun Quiz | 0 | - | 4.93 | 34,874 |
| First Names of Scientists | 0 | - | 4.51 | 57,071 |
| Groups of Two - Science | 0 | - | 4.26 | 48,400 |
| Science Decoder | 0 | - | 4.52 | 28,815 |
| Elements by Symbol | 0 | - | 4.92 | 197,958 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,130 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,125 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,473 |
| Noble Gases | 0 | - | 4.89 | 78,535 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,832 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,908 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,041 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,188 |
| Name a Valid Element | 0 | - | 4.67 | 70,232 |
| Name the Virus | 0 | - | 4.87 | 76,944 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,903 |
| Famous Scientists | 0 | - | 4.57 | 42,754 |
| Citrus Fruits | 0 | - | 3.64 | 42,109 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,133 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,900 |
| Elemental Words | 0 | - | 4.96 | 52,434 |
| Metals of Antiquity | 0 | - | 4.95 | 93,697 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,824 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,785 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,398 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,614 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 276,358 |
| Books by Clue #2 | 0 | - | 4.43 | 26,741 |
| American TV by Clue #2 | 0 | - | 4.29 | 15,712 |
| Movies by Clue Quiz #2 | 0 | - | 4.33 | 85,339 |
| Movies by Clue Quiz #3 | 0 | - | 4.31 | 35,641 |
| Movies by Clue #1 | 0 | - | 4.06 | 86,135 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,684 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,911 |
| Astronomy Decoder | 0 | - | 4.48 | 38,139 |
| Scientific Names | 0 | - | 4.32 | 78,612 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,371 |
| MLB Baseball Team Names by Clue | 0 | - | 4.35 | 67,840 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,638,758 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,797 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,055 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,347 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,681 |
| Astronomy Quiz | 0 | - | 4.90 | 82,954 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,900 |
| Solar System Trivia | 0 | - | 4.93 | 46,909 |
| Body Part Cliches | 0 | - | 4.44 | 123,587 |
| Bones of the Human Body | 0 | - | 4.51 | 43,222 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,676 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,247 |
| Italian Name Translation | 0 | - | 4.83 | 47,467 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,178 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,107,749 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,839 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,326 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,025 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,080 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,040 |
| Disney Animated Characters | 0 | - | 4.88 | 602,191 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,620 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,574 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,080 |
| Books by Clue #1 | 0 | - | 4.36 | 25,821 |
| Movies by Clue Quiz #4 | 0 | - | 4.23 | 28,438 |
| Movies by Haiku #1 | 0 | - | 4.27 | 28,459 |
| Movies by Haiku #2 | 0 | - | 4.22 | 25,055 |
| Countries with Four Letters | 0 | - | 4.99 | 423,967 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,396 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,170 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,663 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,082 |
| Name a Valid World City | 0 | - | 4.83 | 71,609 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,138 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,136 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,087 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,457 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,446 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,109 |
| European History for Dummies | 0 | - | 4.83 | 90,155 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,849 |
| Islands by Country #1 | 0 | - | 4.90 | 175,696 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,862 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,227 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,969 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,013 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,358 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,717 |
| American TV by Clue #1 | 0 | - | 3.97 | 8,738 |
| Country Chain | 0 | - | 4.96 | 217,826 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,806 |
| Cold War Decoder | 0 | - | 4.83 | 52,490 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,599 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,225 |
| Name a Valid Country #3 | 0 | - | 4.99 | 264,007 |
| Name a Valid Country #1 | 0 | - | 4.99 | 292,052 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,900 |
| Name a Valid Country #4 | 0 | - | 4.97 | 257,042 |
| Name a Valid Country #5 | 0 | - | 4.99 | 208,005 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,221 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,971 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,320 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,984 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,386 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,387 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,830 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,836 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,678 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,740 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,221 |
| Environmental Issues | 0 | - | 4.54 | 26,877 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,593 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,595 |
| People With Place Names | 0 | - | 4.01 | 39,753 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,090 |
| "Son" Last Names | 0 | - | 4.47 | 42,552 |
| Shared First Names #2 | 0 | - | 4.53 | 45,698 |
| People with J Initials | 0 | - | 4.51 | 55,526 |
| History Analogies #1 | 0 | - | 4.53 | 90,106 |
| History Analogies #2 | 0 | - | 4.49 | 77,347 |
| History Analogies #3 | 0 | - | 4.61 | 80,796 |
| English Idioms #1 | 0 | - | 4.45 | 146,174 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,464 |
| Clothing Idioms | 0 | - | 4.41 | 34,268 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,983 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,682 |
| Are You a Nerd? | 0 | - | 4.35 | 45,020 |
| The Eleven Colors | 0 | - | 4.74 | 235,600 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,310 |
| King in the Answers | 0 | - | 4.42 | 50,264 |
| Super in the Answers | 0 | - | 4.52 | 110,574 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,546 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,705 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,770 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,749 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,819 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,697 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,265 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,601 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,806 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,101 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,632 |
| Random History by Country | 0 | - | 4.53 | 34,940 |
| Geography Decoder | 0 | - | 4.53 | 75,753 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,752 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,668 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,380 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,547 |
| Fruits by Picture | 0 | - | 4.19 | 808,341 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,522 |
| Answers are Beverages | 0 | - | 4.06 | 61,469 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,576 |
| Types of Food | 0 | - | 4.25 | 90,163 |
| The Foods they Ate | 0 | - | 4.03 | 69,523 |
| Animals Used in Food | 0 | - | 4.28 | 78,293 |
| Most Popular Fruits | 0 | - | 4.16 | 96,817 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,861 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,445 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,020 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,289 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 733,286 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,574 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,063 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,179 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,474 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,170 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,520 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,340 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,458 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,495 |
| The Only Country ... | 0 | - | 4.91 | 81,545 |
| Cult Classic Films by Clue | 0 | - | 3.89 | 16,719 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,804 |
| Random Countries by Borders | 0 | - | 4.99 | 82,776 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,512 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,658 |
| Random Point on Land to Country | 0 | - | 4.99 | 236,189 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 52,505 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,334 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,078 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,135 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,911 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,519 |
| Name a Valid Island Country | 0 | - | 4.96 | 115,242 |
| Science Vocabulary #1 | 0 | - | 4.34 | 72,040 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,120 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,407 |
| Science True or False | 0 | - | 4.35 | 40,421 |
| Elements by Picture | 0 | - | 4.27 | 70,140 |
| Medical Acronyms | 0 | - | 4.43 | 97,073 |
| Medical Vocabulary | 0 | - | 4.54 | 59,319 |
| History General Knowledge #13 | 0 | - | 4.69 | 49,740 |
