| Random Symbol to Element | 0 | - | 4.88 | 93,264 |
| International Scientific Units | 0 | - | 4.95 | 157,390 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,009 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,233 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,375 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,035 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,060 |
| Word Chain - Science | 0 | - | 4.59 | 54,984 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,249,131 |
| The Sun Quiz | 0 | - | 4.93 | 34,801 |
| First Names of Scientists | 0 | - | 4.51 | 57,000 |
| Groups of Two - Science | 0 | - | 4.26 | 48,374 |
| Science Decoder | 0 | - | 4.52 | 28,795 |
| Elements by Symbol | 0 | - | 4.92 | 197,725 |
| Speed Symbol by Element | 0 | - | 4.90 | 104,985 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,108 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,411 |
| Noble Gases | 0 | - | 4.89 | 78,445 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,752 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,725 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,943 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,100 |
| Name a Valid Element | 0 | - | 4.67 | 70,182 |
| Name the Virus | 0 | - | 4.87 | 76,892 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,811 |
| Famous Scientists | 0 | - | 4.57 | 42,726 |
| Citrus Fruits | 0 | - | 3.63 | 42,096 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,083 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,883 |
| Elemental Words | 0 | - | 4.96 | 52,393 |
| Metals of Antiquity | 0 | - | 4.95 | 93,616 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,764 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,743 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,342 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,471 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 275,846 |
| Books by Clue #2 | 0 | - | 4.43 | 26,715 |
| American TV by Clue #2 | 0 | - | 4.29 | 15,706 |
| Movies by Clue Quiz #2 | 0 | - | 4.33 | 85,296 |
| Movies by Clue Quiz #3 | 0 | - | 4.31 | 35,633 |
| Movies by Clue #1 | 0 | - | 4.06 | 86,093 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,576 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,827 |
| Astronomy Decoder | 0 | - | 4.49 | 38,111 |
| Scientific Names | 0 | - | 4.32 | 78,569 |
| MLB Baseball Team Names by Clue | 0 | - | 4.35 | 67,801 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,633,354 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,726 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,036 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,112 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,623 |
| Astronomy Quiz | 0 | - | 4.90 | 82,838 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,711 |
| Solar System Trivia | 0 | - | 4.93 | 46,820 |
| Body Part Cliches | 0 | - | 4.44 | 123,553 |
| Bones of the Human Body | 0 | - | 4.51 | 43,067 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,336 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,019 |
| Italian Name Translation | 0 | - | 4.83 | 47,256 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,054 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,766 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,418 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,959 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,815 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,552 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,915 |
| Disney Animated Characters | 0 | - | 4.88 | 601,967 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,591 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,304 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,587 |
| Books by Clue #1 | 0 | - | 4.36 | 25,800 |
| Movies by Clue Quiz #4 | 0 | - | 4.23 | 28,426 |
| Movies by Haiku #1 | 0 | - | 4.27 | 28,449 |
| Movies by Haiku #2 | 0 | - | 4.22 | 25,041 |
| Countries with Four Letters | 0 | - | 4.99 | 423,392 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,262 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,115 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,556 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 67,975 |
| Name a Valid World City | 0 | - | 4.84 | 71,482 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,940 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,130 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 215,975 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,431 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,273 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,954 |
| European History for Dummies | 0 | - | 4.83 | 90,081 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,545 |
| Islands by Country #1 | 0 | - | 4.90 | 175,499 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,657 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,050 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,822 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,844 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,093 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,385 |
| American TV by Clue #1 | 0 | - | 3.97 | 8,738 |
| Country Chain | 0 | - | 4.96 | 217,459 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,437 |
| Cold War Decoder | 0 | - | 4.83 | 52,449 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,483 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,158 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,696 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,332 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,528 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,690 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,691 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,989 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,734 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,094 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,866 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,240 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,371 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,764 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,778 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,652 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,698 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,121 |
| Environmental Issues | 0 | - | 4.54 | 26,868 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,539 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,567 |
| People With Place Names | 0 | - | 4.01 | 39,707 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,007 |
| "Son" Last Names | 0 | - | 4.47 | 42,484 |
| Shared First Names #2 | 0 | - | 4.53 | 45,609 |
| People with J Initials | 0 | - | 4.51 | 55,506 |
| History Analogies #1 | 0 | - | 4.53 | 90,038 |
| History Analogies #2 | 0 | - | 4.49 | 77,296 |
| History Analogies #3 | 0 | - | 4.61 | 80,737 |
| English Idioms #1 | 0 | - | 4.45 | 146,105 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,450 |
| Clothing Idioms | 0 | - | 4.41 | 34,250 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,947 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,652 |
| Are You a Nerd? | 0 | - | 4.35 | 44,970 |
| The Eleven Colors | 0 | - | 4.74 | 235,472 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,212 |
| King in the Answers | 0 | - | 4.42 | 50,237 |
| Super in the Answers | 0 | - | 4.52 | 110,521 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,503 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,635 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,716 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,712 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,793 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,637 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,216 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,577 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,736 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,055 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,608 |
| Random History by Country | 0 | - | 4.53 | 34,897 |
| Geography Decoder | 0 | - | 4.53 | 75,714 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,715 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,635 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,355 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,501 |
| Fruits by Picture | 0 | - | 4.19 | 808,010 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,487 |
| Answers are Beverages | 0 | - | 4.06 | 61,439 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,539 |
| Types of Food | 0 | - | 4.25 | 90,107 |
| The Foods they Ate | 0 | - | 4.03 | 69,502 |
| Animals Used in Food | 0 | - | 4.28 | 78,223 |
| Most Popular Fruits | 0 | - | 4.16 | 96,761 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,846 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,375 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,976 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,799 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,904 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,550 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,023 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,061 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,326 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,120 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,227 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,190 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,363 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,177 |
| The Only Country ... | 0 | - | 4.91 | 81,420 |
| Cult Classic Films by Clue | 0 | - | 3.89 | 16,710 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,605 |
| Random Countries by Borders | 0 | - | 4.99 | 82,663 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,209 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,455 |
| Random Point on Land to Country | 0 | - | 4.99 | 235,780 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 52,360 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,152 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,726 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,639 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,658 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,321 |
| Name a Valid Island Country | 0 | - | 4.96 | 115,142 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,974 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,075 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,390 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,340 |
| Science True or False | 0 | - | 4.35 | 40,377 |
| Elements by Picture | 0 | - | 4.27 | 70,083 |
| Medical Acronyms | 0 | - | 4.43 | 96,985 |
| Medical Vocabulary | 0 | - | 4.54 | 59,231 |
| History General Knowledge #13 | 0 | - | 4.69 | 49,618 |
