| Random Symbol to Element | 0 | - | 4.88 | 92,203 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,556 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,428 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,608 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,177 |
| Word Chain - Science | 0 | - | 4.59 | 54,386 |
| The Only Country ... | 0 | - | 4.91 | 79,850 |
| International Scientific Units | 0 | - | 4.95 | 155,308 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,199 |
| First Names of Scientists | 0 | - | 4.50 | 56,449 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,219,928 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,823 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,184 |
| Name a Valid Element | 0 | - | 4.64 | 69,562 |
| Medical Acronyms | 0 | - | 4.43 | 96,167 |
| Medical Vocabulary | 0 | - | 4.54 | 58,520 |
| Groups of Two - Science | 0 | - | 4.26 | 48,135 |
| Science Decoder | 0 | - | 4.52 | 28,649 |
| Elements by Symbol | 0 | - | 4.92 | 195,469 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,601 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,436 |
| Noble Gases | 0 | - | 4.89 | 77,433 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,039 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,883 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,857 |
| Body Part Words | 0 | - | 4.43 | 145,208 |
| Name the Virus | 0 | - | 4.86 | 76,234 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,494 |
| Citrus Fruits | 0 | - | 3.65 | 41,946 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,574 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,699 |
| Elemental Words | 0 | - | 4.96 | 51,982 |
| Metals of Antiquity | 0 | - | 4.94 | 92,891 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,224 |
| Astronomy Decoder | 0 | - | 4.50 | 37,838 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,783 |
| Three Letter Body Parts | 0 | - | 4.40 | 204,900 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,710 |
| Medical Specialties | 0 | - | 4.29 | 90,895 |
| The Diseases They Had | 0 | - | 4.15 | 13,884 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,158 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 269,588 |
| Books by Clue #2 | 0 | - | 4.43 | 26,601 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,081 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,756 |
| Cities that End in O by Clue | 0 | - | 4.56 | 60,957 |
| Cities that End in N by Clue | 0 | - | 4.55 | 53,912 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,048 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,774 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,479 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,816 |
| Famous Scientists | 0 | - | 4.57 | 42,446 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,655 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,036 |
| Random Cities by Clue | 0 | - | 4.53 | 42,592 |
| MLB Baseball Team Names by Clue | 0 | - | 4.34 | 67,184 |
| Astronomy Quiz | 0 | - | 4.89 | 81,676 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,725 |
| Solar System Trivia | 0 | - | 4.93 | 46,007 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,547 |
| Italian Name Translation | 0 | - | 4.81 | 45,011 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,912 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,699 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,114 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,081 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,209 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,796 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,795 |
| Disney Animated Characters | 0 | - | 4.88 | 599,027 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,800 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,724 |
| Books by Clue #1 | 0 | - | 4.36 | 25,703 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,566 |
| Cities that End in M by Clue | 0 | - | 4.62 | 20,855 |
| U.S. Cities by Clue #1 | 0 | - | 4.27 | 47,964 |
| World Cities by Clue #1 | 0 | - | 4.30 | 73,930 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,443 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,885 |
| Countries with Four Letters | 0 | - | 4.99 | 418,453 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,161 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,532 |
| Name a Valid World City | 0 | - | 4.83 | 70,107 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,805 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,171 |
| Scientific Names | 0 | - | 4.32 | 78,156 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,029 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,903 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,250 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,188 |
| Body Part Cliches | 0 | - | 4.43 | 123,038 |
| Bones of the Human Body | 0 | - | 4.56 | 35,723 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,097 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,320 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,512 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,667 |
| Islands by Country #1 | 0 | - | 4.87 | 174,469 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,902 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,267 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,325 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,233 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,619 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,289 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,410 |
| Country Chain | 0 | - | 4.96 | 215,700 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,748 |
| Cold War Decoder | 0 | - | 4.83 | 51,915 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,564 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 66,976 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,377 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,593 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,949 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,769 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,383 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,349 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,519 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,760 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,362 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,441 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,987 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,206 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,406 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,237 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,189 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,091 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,253 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,349 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,332 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,661 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,629 |
| Environmental Issues | 0 | - | 4.54 | 26,718 |
| Chuck Norris Facts | 0 | - | 4.50 | 8,046 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,020 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,383 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,101 |
| Shared First Names #2 | 0 | - | 4.53 | 44,981 |
| People with J Initials | 0 | - | 4.51 | 55,216 |
| History Analogies #1 | 0 | - | 4.53 | 89,774 |
| History Analogies #2 | 0 | - | 4.49 | 76,993 |
| History Analogies #3 | 0 | - | 4.61 | 80,425 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,744 |
| English Idioms #1 | 0 | - | 4.45 | 144,488 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,237 |
| Clothing Idioms | 0 | - | 4.41 | 34,055 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,304 |
| Are You a Nerd? | 0 | - | 4.35 | 44,501 |
| The Eleven Colors | 0 | - | 4.73 | 233,270 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,422 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,437 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,174 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,597 |
| U.S. Cities by Clue #3 | 0 | - | 4.12 | 28,270 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,686 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,337 |
| King in the Answers | 0 | - | 4.42 | 49,617 |
| Super in the Answers | 0 | - | 4.52 | 109,361 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,087 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,760 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,311 |
| Six Letter Geography #2 | 0 | - | 4.69 | 67,407 |
| Six Letter Geography #3 | 0 | - | 4.53 | 81,430 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,983 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,669 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,447 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,115 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,583 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,436 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,435 |
| Random Countries by Borders | 0 | - | 4.99 | 81,658 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,984 |
| Random History by Country | 0 | - | 4.53 | 34,655 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,183 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,806 |
| Geography Decoder | 0 | - | 4.53 | 75,334 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,377 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,321 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,067 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,113 |
| Fruits by Picture | 0 | - | 4.20 | 804,569 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,161 |
| Answers are Beverages | 0 | - | 4.10 | 61,055 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,749 |
| Types of Food | 0 | - | 4.24 | 89,125 |
| The Foods they Ate | 0 | - | 4.03 | 69,195 |
| Animals Used in Food | 0 | - | 4.29 | 77,639 |
| Most Popular Fruits | 0 | - | 4.16 | 96,200 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,635 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,697 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,411 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,537 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,533 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,768 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,289 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,762 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,040 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 56,812 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,378 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,655 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,062 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,155 |
| Elements by Picture | 0 | - | 4.28 | 69,537 |
