| Random Symbol to Element | 0 | - | 4.88 | 92,976 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,096,410 |
| Science General Knowledge #1 | 0 | - | 4.54 | 165,780 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,646 |
| Science General Knowledge #3 | 0 | - | 4.56 | 108,290 |
| Word Chain - Science | 0 | - | 4.59 | 54,844 |
| The Only Country ... | 0 | - | 4.91 | 80,868 |
| International Scientific Units | 0 | - | 4.95 | 156,626 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,712 |
| First Names of Scientists | 0 | - | 4.50 | 56,760 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,239,135 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,993 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,807 |
| Name a Valid Element | 0 | - | 4.64 | 69,974 |
| Medical Acronyms | 0 | - | 4.43 | 96,775 |
| Medical Vocabulary | 0 | - | 4.54 | 59,052 |
| Groups of Two - Science | 0 | - | 4.26 | 48,292 |
| Science Decoder | 0 | - | 4.52 | 28,753 |
| Elements by Symbol | 0 | - | 4.92 | 197,005 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,552 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,155 |
| Noble Gases | 0 | - | 4.89 | 78,085 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,510 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,028 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,569 |
| Body Part Words | 0 | - | 4.43 | 145,899 |
| Name the Virus | 0 | - | 4.87 | 76,695 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,643 |
| Citrus Fruits | 0 | - | 3.63 | 42,062 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,918 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,811 |
| Elemental Words | 0 | - | 4.96 | 52,243 |
| Metals of Antiquity | 0 | - | 4.95 | 93,371 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,625 |
| Astronomy Decoder | 0 | - | 4.49 | 38,023 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,263 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,539 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,109 |
| Medical Specialties | 0 | - | 4.32 | 91,716 |
| The Diseases They Had | 0 | - | 4.15 | 13,996 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,360 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 273,900 |
| Books by Clue #2 | 0 | - | 4.43 | 26,671 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,217 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,939 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,197 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,105 |
| Cities that End in I by Clue | 0 | - | 4.61 | 57,261 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,923 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,215 |
| Major Taxonomic Ranks | 0 | - | 4.56 | 80,441 |
| Famous Scientists | 0 | - | 4.57 | 42,617 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,944 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,617,535 |
| Random Cities by Clue | 0 | - | 4.53 | 42,695 |
| MLB Baseball Team Names by Clue | 0 | - | 4.35 | 67,614 |
| Astronomy Quiz | 0 | - | 4.90 | 82,470 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,035 |
| Solar System Trivia | 0 | - | 4.93 | 46,549 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,604 |
| Italian Name Translation | 0 | - | 4.82 | 46,448 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,620 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,099,416 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,330 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,990 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,312 |
| 7 Deadly Sins | 0 | - | 4.88 | 399,534 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,561 |
| Disney Animated Characters | 0 | - | 4.88 | 601,119 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,754 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 449,717 |
| Books by Clue #1 | 0 | - | 4.36 | 25,767 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,830 |
| Cities that End in M by Clue | 0 | - | 4.62 | 21,135 |
| U.S. Cities by Clue #1 | 0 | - | 4.28 | 48,054 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,647 |
| World Cities by Clue #1 | 0 | - | 4.30 | 74,106 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,525 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,966 |
| Countries with Four Letters | 0 | - | 4.99 | 421,849 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,935 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,925 |
| Name a Valid World City | 0 | - | 4.83 | 71,038 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,333 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,373 |
| Scientific Names | 0 | - | 4.32 | 78,407 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,490 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,990 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,574 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,457 |
| Body Part Cliches | 0 | - | 4.43 | 123,272 |
| Bones of the Human Body | 0 | - | 4.52 | 42,213 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,102 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 719,603 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,483 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,744 |
| Islands by Country #1 | 0 | - | 4.88 | 175,175 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,419 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,766 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,660 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,471 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,435 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,023 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 177,871 |
| Country Chain | 0 | - | 4.96 | 216,918 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,260 |
| Cold War Decoder | 0 | - | 4.83 | 52,292 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,278 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,660 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,101 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,969 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,116 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,668 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,091 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,268 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,181 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,561 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,113 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,996 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,362 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,384 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,746 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,374 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,954 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,261 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,591 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,669 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,532 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,740 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,886 |
| Environmental Issues | 0 | - | 4.54 | 26,820 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,402 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,340 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,501 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 45,633 |
| Shared First Names #2 | 0 | - | 4.53 | 45,296 |
| People with J Initials | 0 | - | 4.51 | 55,409 |
| History Analogies #1 | 0 | - | 4.53 | 89,942 |
| History Analogies #2 | 0 | - | 4.49 | 77,181 |
| History Analogies #3 | 0 | - | 4.61 | 80,620 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,540 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,001 |
| English Idioms #1 | 0 | - | 4.45 | 145,374 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,377 |
| Clothing Idioms | 0 | - | 4.41 | 34,182 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,878 |
| Are You a Nerd? | 0 | - | 4.35 | 44,823 |
| The Eleven Colors | 0 | - | 4.74 | 234,984 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,046 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,716 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,035 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,218 |
| U.S. Cities by Clue #3 | 0 | - | 4.14 | 28,327 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,930 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,422 |
| King in the Answers | 0 | - | 4.42 | 50,057 |
| Super in the Answers | 0 | - | 4.52 | 109,928 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,354 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,435 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,589 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,606 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,687 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,451 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,049 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,532 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,546 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,904 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,565 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,005 |
| Random Countries by Borders | 0 | - | 4.99 | 82,330 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,200 |
| Random History by Country | 0 | - | 4.53 | 34,831 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,823 |
| Random Point on Land to Country | 0 | - | 4.99 | 234,252 |
| Geography Decoder | 0 | - | 4.53 | 75,598 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,605 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,533 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,264 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,392 |
| Fruits by Picture | 0 | - | 4.19 | 806,902 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,404 |
| Answers are Beverages | 0 | - | 4.10 | 61,333 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,444 |
| Types of Food | 0 | - | 4.25 | 89,923 |
| The Foods they Ate | 0 | - | 4.03 | 69,420 |
| Animals Used in Food | 0 | - | 4.28 | 78,069 |
| Most Popular Fruits | 0 | - | 4.16 | 96,584 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,765 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,166 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,644 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,832 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,739 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,717 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,924 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,812 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,807 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,662 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,766 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,932 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,110 |
