| Random Symbol to Element | 0 | - | 4.88 | 92,846 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,617 |
| The Only Country ... | 0 | - | 4.91 | 80,738 |
| Science General Knowledge #1 | 0 | - | 4.54 | 165,516 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,445 |
| Science General Knowledge #3 | 0 | - | 4.56 | 107,466 |
| Word Chain - Science | 0 | - | 4.59 | 54,796 |
| International Scientific Units | 0 | - | 4.95 | 156,466 |
| First Names of Scientists | 0 | - | 4.50 | 56,734 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,649 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,236,874 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,966 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,724 |
| Name a Valid Element | 0 | - | 4.64 | 69,923 |
| Medical Acronyms | 0 | - | 4.43 | 96,718 |
| Medical Vocabulary | 0 | - | 4.54 | 59,009 |
| Groups of Two - Science | 0 | - | 4.26 | 48,275 |
| Science Decoder | 0 | - | 4.52 | 28,735 |
| Elements by Symbol | 0 | - | 4.92 | 196,778 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,447 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,915 |
| Noble Gases | 0 | - | 4.89 | 77,987 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,453 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,886 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,468 |
| Body Part Words | 0 | - | 4.43 | 145,855 |
| Name the Virus | 0 | - | 4.87 | 76,645 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,549 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,793 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,570 |
| Astronomy Decoder | 0 | - | 4.50 | 37,991 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,201 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,506 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,053 |
| Medical Specialties | 0 | - | 4.32 | 91,672 |
| Famous People from Africa | 0 | - | 4.45 | 10,936 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,195 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,916 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,158 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,075 |
| Cities that End in I by Clue | 0 | - | 4.61 | 57,236 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,904 |
| Citrus Fruits | 0 | - | 3.63 | 42,040 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,881 |
| Elemental Words | 0 | - | 4.96 | 52,216 |
| Metals of Antiquity | 0 | - | 4.94 | 93,284 |
| The Diseases They Had | 0 | - | 4.15 | 13,984 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,923 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,613,311 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,328 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 273,340 |
| Famous Jewish People | 0 | - | 4.01 | 39,851 |
| Random Cities by Clue | 0 | - | 4.53 | 42,685 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,120 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,377 |
| Famous Scientists | 0 | - | 4.57 | 42,594 |
| Astronomy Quiz | 0 | - | 4.90 | 82,367 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,842 |
| Solar System Trivia | 0 | - | 4.93 | 46,470 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,524 |
| Italian Name Translation | 0 | - | 4.82 | 46,321 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,525 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,772 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,012 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,708 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,127 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,992 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,445 |
| Disney Animated Characters | 0 | - | 4.88 | 600,926 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,634 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,786 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,799 |
| Cities that End in M by Clue | 0 | - | 4.62 | 21,101 |
| U.S. Cities by Clue #1 | 0 | - | 4.28 | 48,039 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,642 |
| World Cities by Clue #1 | 0 | - | 4.30 | 74,082 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,514 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,953 |
| Countries with Four Letters | 0 | - | 4.99 | 421,410 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,822 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,868 |
| French Food Words | 0 | - | 4.80 | 194,548 |
| Name a Valid World City | 0 | - | 4.83 | 70,905 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,115 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,185 |
| Scientific Names | 0 | - | 4.32 | 78,374 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,421 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,971 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,261 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,429 |
| Body Part Cliches | 0 | - | 4.43 | 123,250 |
| Bones of the Human Body | 0 | - | 4.52 | 42,052 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,039 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,685 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,341 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,500 |
| Islands by Country #1 | 0 | - | 4.88 | 175,054 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,333 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,688 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,595 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,444 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,336 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,409 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,625 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,374 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,696 |
| Country Chain | 0 | - | 4.96 | 216,772 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 215,836 |
| Cold War Decoder | 0 | - | 4.83 | 52,243 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,204 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,577 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,005 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,915 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,609 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,410 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,463 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,942 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,861 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,219 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,868 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,761 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,131 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,578 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,353 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,861 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,243 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,537 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,632 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,506 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,348 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,858 |
| Environmental Issues | 0 | - | 4.54 | 26,809 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,347 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,295 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,488 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,548 |
| Shared First Names #2 | 0 | - | 4.53 | 45,252 |
| People with J Initials | 0 | - | 4.51 | 55,386 |
| History Analogies #1 | 0 | - | 4.53 | 89,913 |
| History Analogies #2 | 0 | - | 4.49 | 77,158 |
| History Analogies #3 | 0 | - | 4.61 | 80,599 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,402 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,971 |
| English Idioms #1 | 0 | - | 4.45 | 145,298 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,361 |
| Clothing Idioms | 0 | - | 4.41 | 34,165 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,334 |
| African-American Historical Figures | 0 | - | 4.18 | 17,172 |
| Famous People from South America | 0 | - | 4.15 | 21,913 |
| Famous Caribbean People | 0 | - | 4.37 | 12,601 |
| Famous Catholics | 0 | - | 4.16 | 27,730 |
| Are You a Nerd? | 0 | - | 4.35 | 44,782 |
| The Eleven Colors | 0 | - | 4.74 | 234,876 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,988 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,519 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,910 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,836 |
| U.S. Cities by Clue #3 | 0 | - | 4.14 | 28,316 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,906 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,408 |
| King in the Answers | 0 | - | 4.42 | 49,940 |
| Super in the Answers | 0 | - | 4.52 | 109,843 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,308 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,369 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,554 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,574 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,658 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,394 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,997 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,521 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,497 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,856 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,552 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,796 |
| Random Countries by Borders | 0 | - | 4.99 | 82,253 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,849 |
| Random History by Country | 0 | - | 4.53 | 34,809 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,613 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,155 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,813 |
| Geography Decoder | 0 | - | 4.53 | 75,553 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,567 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,506 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,233 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,368 |
| Fruits by Picture | 0 | - | 4.19 | 806,594 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,383 |
| Answers are Beverages | 0 | - | 4.10 | 61,300 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,410 |
| Types of Food | 0 | - | 4.25 | 89,864 |
| The Foods they Ate | 0 | - | 4.03 | 69,406 |
| Animals Used in Food | 0 | - | 4.28 | 78,014 |
| Most Popular Fruits | 0 | - | 4.16 | 96,536 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,749 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,106 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,485 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,801 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,363 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,404 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,696 |
