| Random Symbol to Element | 0 | - | 4.88 | 92,267 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,091,104 |
| The Only Country ... | 0 | - | 4.91 | 79,953 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,624 |
| Science General Knowledge #2 | 0 | - | 4.48 | 116,935 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,302 |
| Word Chain - Science | 0 | - | 4.59 | 54,416 |
| International Scientific Units | 0 | - | 4.95 | 155,453 |
| First Names of Scientists | 0 | - | 4.50 | 56,479 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,282 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,221,753 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,837 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,237 |
| Name a Valid Element | 0 | - | 4.64 | 69,597 |
| Medical Acronyms | 0 | - | 4.43 | 96,211 |
| Medical Vocabulary | 0 | - | 4.54 | 58,567 |
| Groups of Two - Science | 0 | - | 4.26 | 48,150 |
| Science Decoder | 0 | - | 4.52 | 28,657 |
| Elements by Symbol | 0 | - | 4.92 | 195,633 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,697 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,501 |
| Noble Gases | 0 | - | 4.89 | 77,501 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,087 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,013 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,939 |
| Body Part Words | 0 | - | 4.43 | 145,266 |
| Name the Virus | 0 | - | 4.86 | 76,283 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,537 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,708 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,258 |
| Astronomy Decoder | 0 | - | 4.50 | 37,860 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,840 |
| Three Letter Body Parts | 0 | - | 4.40 | 204,952 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,757 |
| Medical Specialties | 0 | - | 4.29 | 90,920 |
| Famous People from Africa | 0 | - | 4.45 | 10,863 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,094 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,778 |
| Cities that End in O by Clue | 0 | - | 4.56 | 60,981 |
| Cities that End in N by Clue | 0 | - | 4.55 | 53,927 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,073 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,792 |
| Citrus Fruits | 0 | - | 3.65 | 41,957 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,617 |
| Elemental Words | 0 | - | 4.96 | 52,013 |
| Metals of Antiquity | 0 | - | 4.94 | 92,941 |
| The Diseases They Had | 0 | - | 4.15 | 13,889 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,670 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,589,504 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,175 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 270,020 |
| Famous Jewish People | 0 | - | 4.03 | 37,149 |
| Random Cities by Clue | 0 | - | 4.53 | 42,602 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,553 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,874 |
| Famous Scientists | 0 | - | 4.57 | 42,472 |
| Astronomy Quiz | 0 | - | 4.90 | 81,772 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,832 |
| Solar System Trivia | 0 | - | 4.93 | 46,070 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,937 |
| Italian Name Translation | 0 | - | 4.81 | 45,131 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,992 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,599 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,297 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,221 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,301 |
| 7 Deadly Sins | 0 | - | 4.88 | 395,264 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,857 |
| Disney Animated Characters | 0 | - | 4.88 | 599,306 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,889 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,917 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,627 |
| Cities that End in M by Clue | 0 | - | 4.62 | 20,907 |
| U.S. Cities by Clue #1 | 0 | - | 4.27 | 47,970 |
| World Cities by Clue #1 | 0 | - | 4.30 | 73,950 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,456 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,899 |
| Countries with Four Letters | 0 | - | 4.99 | 418,717 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,256 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,558 |
| Name a Valid World City | 0 | - | 4.83 | 70,191 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,920 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,270 |
| Scientific Names | 0 | - | 4.32 | 78,186 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,076 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,917 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,420 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,220 |
| Body Part Cliches | 0 | - | 4.43 | 123,091 |
| Bones of the Human Body | 0 | - | 4.54 | 39,041 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,156 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,979 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,621 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,829 |
| Islands by Country #1 | 0 | - | 4.87 | 174,529 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,956 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,307 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,355 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,260 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,688 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,391 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,502 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,233 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,606 |
| Country Chain | 0 | - | 4.96 | 215,808 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,940 |
| Cold War Decoder | 0 | - | 4.83 | 51,951 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,659 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,041 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,452 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,624 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,191 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,918 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,768 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,519 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,712 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,897 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,497 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,573 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,104 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,488 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,249 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,257 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,132 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,284 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,374 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,356 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,821 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,666 |
| Environmental Issues | 0 | - | 4.54 | 26,730 |
| Chuck Norris Facts | 0 | - | 4.50 | 8,074 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,053 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,392 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,141 |
| Shared First Names #2 | 0 | - | 4.53 | 45,006 |
| People with J Initials | 0 | - | 4.51 | 55,227 |
| History Analogies #1 | 0 | - | 4.53 | 89,790 |
| History Analogies #2 | 0 | - | 4.49 | 77,011 |
| History Analogies #3 | 0 | - | 4.61 | 80,447 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,768 |
| English Idioms #1 | 0 | - | 4.45 | 144,869 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,250 |
| Clothing Idioms | 0 | - | 4.41 | 34,069 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,425 |
| African-American Historical Figures | 0 | - | 4.18 | 17,128 |
| Famous People from South America | 0 | - | 4.15 | 21,793 |
| Famous Caribbean People | 0 | - | 4.37 | 12,567 |
| Famous Catholics | 0 | - | 4.16 | 27,509 |
| Are You a Nerd? | 0 | - | 4.35 | 44,526 |
| The Eleven Colors | 0 | - | 4.73 | 233,365 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,493 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,483 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,348 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,604 |
| U.S. Cities by Clue #3 | 0 | - | 4.12 | 28,275 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,739 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,342 |
| King in the Answers | 0 | - | 4.42 | 49,658 |
| Super in the Answers | 0 | - | 4.52 | 109,408 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,114 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,813 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,340 |
| Six Letter Geography #2 | 0 | - | 4.69 | 67,427 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,448 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,023 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,690 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,452 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,152 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,611 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,444 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,607 |
| Random Countries by Borders | 0 | - | 4.99 | 81,704 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,253 |
| Random History by Country | 0 | - | 4.53 | 34,673 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,308 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,945 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,820 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,999 |
| Geography Decoder | 0 | - | 4.53 | 75,355 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,401 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,341 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,085 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,142 |
| Fruits by Picture | 0 | - | 4.20 | 804,789 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,187 |
| Answers are Beverages | 0 | - | 4.10 | 61,086 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,800 |
| Types of Food | 0 | - | 4.24 | 89,162 |
| The Foods they Ate | 0 | - | 4.03 | 69,222 |
| Animals Used in Food | 0 | - | 4.29 | 77,680 |
| Most Popular Fruits | 0 | - | 4.16 | 96,243 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,649 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,748 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,518 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,569 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,684 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,940 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,449 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,859 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,094 |
