| Random Symbol to Element | 0 | - | 4.88 | 92,222 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,781 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,480 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,646 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,204 |
| Word Chain - Science | 0 | - | 4.59 | 54,397 |
| The Only Country ... | 0 | - | 4.91 | 79,890 |
| International Scientific Units | 0 | - | 4.95 | 155,365 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,233 |
| First Names of Scientists | 0 | - | 4.50 | 56,461 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,220,646 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,826 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,202 |
| Name a Valid Element | 0 | - | 4.64 | 69,577 |
| Medical Acronyms | 0 | - | 4.43 | 96,184 |
| Medical Vocabulary | 0 | - | 4.54 | 58,538 |
| Groups of Two - Science | 0 | - | 4.26 | 48,144 |
| Science Decoder | 0 | - | 4.52 | 28,650 |
| Elements by Symbol | 0 | - | 4.92 | 195,528 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,638 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,464 |
| Noble Gases | 0 | - | 4.89 | 77,453 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,056 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,925 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,883 |
| Body Part Words | 0 | - | 4.43 | 145,228 |
| Name the Virus | 0 | - | 4.86 | 76,260 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,515 |
| Citrus Fruits | 0 | - | 3.65 | 41,950 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,593 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,703 |
| Elemental Words | 0 | - | 4.96 | 51,992 |
| Metals of Antiquity | 0 | - | 4.94 | 92,912 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,240 |
| Astronomy Decoder | 0 | - | 4.50 | 37,847 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,807 |
| Three Letter Body Parts | 0 | - | 4.40 | 204,916 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,734 |
| Medical Specialties | 0 | - | 4.29 | 90,899 |
| The Diseases They Had | 0 | - | 4.15 | 13,888 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,163 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 269,761 |
| Books by Clue #2 | 0 | - | 4.43 | 26,605 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,087 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,766 |
| Cities that End in O by Clue | 0 | - | 4.56 | 60,964 |
| Cities that End in N by Clue | 0 | - | 4.55 | 53,918 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,060 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,787 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,511 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,840 |
| Famous Scientists | 0 | - | 4.57 | 42,453 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,657 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,176 |
| Random Cities by Clue | 0 | - | 4.53 | 42,596 |
| MLB Baseball Team Names by Clue | 0 | - | 4.34 | 67,201 |
| Astronomy Quiz | 0 | - | 4.90 | 81,708 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,762 |
| Solar System Trivia | 0 | - | 4.93 | 46,035 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,594 |
| Italian Name Translation | 0 | - | 4.81 | 45,041 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,940 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,079 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,178 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,122 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,240 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,953 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,823 |
| Disney Animated Characters | 0 | - | 4.88 | 599,085 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,827 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,783 |
| Books by Clue #1 | 0 | - | 4.36 | 25,707 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,603 |
| Cities that End in M by Clue | 0 | - | 4.62 | 20,882 |
| U.S. Cities by Clue #1 | 0 | - | 4.27 | 47,965 |
| World Cities by Clue #1 | 0 | - | 4.30 | 73,938 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,446 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,890 |
| Countries with Four Letters | 0 | - | 4.99 | 418,545 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,182 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,541 |
| Name a Valid World City | 0 | - | 4.83 | 70,135 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,851 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,199 |
| Scientific Names | 0 | - | 4.32 | 78,165 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,046 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,905 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,312 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,198 |
| Body Part Cliches | 0 | - | 4.43 | 123,057 |
| Bones of the Human Body | 0 | - | 4.57 | 37,114 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,122 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,567 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,551 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,725 |
| Islands by Country #1 | 0 | - | 4.87 | 174,489 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,925 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,288 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,337 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,243 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,648 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,328 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,440 |
| Country Chain | 0 | - | 4.96 | 215,737 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,820 |
| Cold War Decoder | 0 | - | 4.83 | 51,929 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,605 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,007 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,402 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,605 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,028 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,825 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,535 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,414 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,589 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,810 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,411 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,498 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,030 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,230 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,433 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,242 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,210 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,104 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,260 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,357 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,344 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,727 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,646 |
| Environmental Issues | 0 | - | 4.54 | 26,723 |
| Chuck Norris Facts | 0 | - | 4.50 | 8,060 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,036 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,386 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,120 |
| Shared First Names #2 | 0 | - | 4.53 | 44,996 |
| People with J Initials | 0 | - | 4.51 | 55,218 |
| History Analogies #1 | 0 | - | 4.53 | 89,782 |
| History Analogies #2 | 0 | - | 4.49 | 76,999 |
| History Analogies #3 | 0 | - | 4.61 | 80,432 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,757 |
| English Idioms #1 | 0 | - | 4.45 | 144,801 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,244 |
| Clothing Idioms | 0 | - | 4.41 | 34,063 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,355 |
| Are You a Nerd? | 0 | - | 4.35 | 44,511 |
| The Eleven Colors | 0 | - | 4.73 | 233,306 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,448 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,454 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,226 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,598 |
| U.S. Cities by Clue #3 | 0 | - | 4.12 | 28,271 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,712 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,339 |
| King in the Answers | 0 | - | 4.42 | 49,639 |
| Super in the Answers | 0 | - | 4.52 | 109,386 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,098 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,777 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,320 |
| Six Letter Geography #2 | 0 | - | 4.69 | 67,410 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,441 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,994 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,678 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,448 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,128 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,593 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,439 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,482 |
| Random Countries by Borders | 0 | - | 4.99 | 81,678 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,109 |
| Random History by Country | 0 | - | 4.53 | 34,659 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,224 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,881 |
| Geography Decoder | 0 | - | 4.53 | 75,340 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,388 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,329 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,072 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,123 |
| Fruits by Picture | 0 | - | 4.20 | 804,658 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,170 |
| Answers are Beverages | 0 | - | 4.10 | 61,072 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,761 |
| Types of Food | 0 | - | 4.24 | 89,136 |
| The Foods they Ate | 0 | - | 4.03 | 69,204 |
| Animals Used in Food | 0 | - | 4.29 | 77,648 |
| Most Popular Fruits | 0 | - | 4.16 | 96,218 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,641 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,715 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,447 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,546 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,587 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,846 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,337 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,799 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,061 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 56,841 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,388 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,659 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,064 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,158 |
| Elements by Picture | 0 | - | 4.28 | 69,552 |
