| Random Symbol to Element | 0 | - | 4.88 | 92,110 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,725 |
| The Only Country ... | 0 | - | 4.91 | 79,698 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,306 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,539 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,107 |
| Word Chain - Science | 0 | - | 4.59 | 54,349 |
| International Scientific Units | 0 | - | 4.95 | 155,036 |
| First Names of Scientists | 0 | - | 4.50 | 56,421 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,026 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,217,096 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,803 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,106 |
| Name a Valid Element | 0 | - | 4.64 | 69,503 |
| Medical Acronyms | 0 | - | 4.43 | 95,716 |
| Medical Vocabulary | 0 | - | 4.54 | 58,466 |
| Groups of Two - Science | 0 | - | 4.26 | 48,116 |
| Science Decoder | 0 | - | 4.52 | 28,634 |
| Elements by Symbol Quiz | 0 | - | 4.92 | 195,222 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,401 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,331 |
| Noble Gases | 0 | - | 4.89 | 77,307 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 63,932 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,724 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,717 |
| Body Part Words | 0 | - | 4.43 | 145,071 |
| Name the Virus | 0 | - | 4.86 | 76,161 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.60 | 47,438 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,682 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,165 |
| Astronomy Decoder | 0 | - | 4.50 | 37,807 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,689 |
| Three Letter Body Parts | 0 | - | 4.39 | 204,774 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,604 |
| Medical Specialties | 0 | - | 4.29 | 90,833 |
| Famous People from Africa | 0 | - | 4.45 | 10,851 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,063 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,736 |
| Cities that End in O by Clue | 0 | - | 4.56 | 60,924 |
| Cities that End in N by Clue | 0 | - | 4.55 | 53,889 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,019 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,755 |
| Citrus Fruits | 0 | - | 3.65 | 41,939 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,527 |
| Elemental Words | 0 | - | 4.96 | 51,926 |
| Metals of Antiquity | 0 | - | 4.94 | 92,810 |
| The Diseases They Had | 0 | - | 4.15 | 13,875 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,615 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,228 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,122 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 268,942 |
| Famous Jewish People | 0 | - | 4.03 | 37,118 |
| Random Cities by Clue | 0 | - | 4.53 | 42,577 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,369 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,702 |
| Famous Scientists | 0 | - | 4.57 | 42,387 |
| Astronomy Quiz | 0 | - | 4.89 | 81,566 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,546 |
| Solar System Trivia | 0 | - | 4.93 | 45,893 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,390 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,804 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,114 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,806 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,803 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,049 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,223 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,664 |
| Disney Animated Characters | 0 | - | 4.88 | 598,758 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,648 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,414 |
| Cities that End in R by Clue | 0 | - | 4.68 | 18,539 |
| Cities that End in M by Clue | 0 | - | 4.62 | 20,815 |
| U.S. Cities by Clue #1 | 0 | - | 4.27 | 47,954 |
| World Cities by Clue #1 | 0 | - | 4.30 | 73,906 |
| World Cities by Clue Quiz #3 | 0 | - | 4.30 | 48,425 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 23,877 |
| Countries with Four Letters | 0 | - | 4.99 | 418,001 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,070 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,479 |
| Name a Valid World City | 0 | - | 4.83 | 69,983 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,610 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,009 |
| Scientific Names | 0 | - | 4.32 | 78,091 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 85,976 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,893 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,109 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,152 |
| Body Part Cliches | 0 | - | 4.43 | 122,870 |
| Medical Conditions Quiz | 0 | - | 4.78 | 122,993 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,461 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,371 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,448 |
| Islands by Country #1 | 0 | - | 4.87 | 174,388 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,833 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,201 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,273 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,201 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,527 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,118 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,258 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,194 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,570 |
| Country Chain | 0 | - | 4.96 | 215,544 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,461 |
| Cold War Decoder | 0 | - | 4.83 | 51,872 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,442 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 66,877 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,260 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,557 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,510 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,521 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,817 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,061 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,215 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,539 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,163 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,263 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,784 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,089 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,272 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,224 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,106 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,993 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,197 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,324 |
| Science Multiple Choice #2 | 0 | - | 4.40 | 36,296 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,209 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,547 |
| Environmental Issues | 0 | - | 4.54 | 26,708 |
| Chuck Norris Facts | 0 | - | 4.50 | 7,991 |
| Two Letter Answers #2 | 0 | - | 4.43 | 85,966 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,365 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,040 |
| Shared First Names #2 | 0 | - | 4.53 | 44,938 |
| People with J Initials | 0 | - | 4.51 | 55,196 |
| History Analogies #1 | 0 | - | 4.53 | 89,743 |
| History Analogies #2 | 0 | - | 4.49 | 76,961 |
| History Analogies #3 | 0 | - | 4.61 | 80,398 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,688 |
| English Idioms #1 | 0 | - | 4.45 | 144,172 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,216 |
| Clothing Idioms | 0 | - | 4.41 | 34,040 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,176 |
| African-American Historical Figures | 0 | - | 4.18 | 17,113 |
| Famous People from South America | 0 | - | 4.15 | 21,767 |
| Famous Caribbean People | 0 | - | 4.37 | 12,559 |
| Famous Catholics | 0 | - | 4.16 | 27,432 |
| Are You a Nerd? | 0 | - | 4.35 | 44,460 |
| The Eleven Colors | 0 | - | 4.73 | 233,148 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,306 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,360 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 76,917 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,591 |
| U.S. Cities by Clue #3 | 0 | - | 4.12 | 28,264 |
| Cities that End in L by Clue | 0 | - | 4.24 | 20,653 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,326 |
| King in the Answers | 0 | - | 4.42 | 49,534 |
| Super in the Answers | 0 | - | 4.52 | 109,177 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,051 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,692 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,267 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,374 |
| Six Letter Geography #3 | 0 | - | 4.53 | 81,394 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,908 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,608 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,429 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,087 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,534 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,420 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,217 |
| Random Countries by Borders | 0 | - | 4.99 | 81,572 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,859 |
| Random History by Country | 0 | - | 4.53 | 34,634 |
| Random Name a Valid Country | 0 | - | 4.99 | 202,970 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,433 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 377,923 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,491 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 51,109 |
| Geography Decoder | 0 | - | 4.53 | 75,302 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,345 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,288 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,047 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,067 |
| Fruits by Picture | 0 | - | 4.20 | 804,284 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,118 |
| Answers are Beverages | 0 | - | 4.10 | 60,995 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,690 |
| Types of Food | 0 | - | 4.24 | 89,057 |
| The Foods they Ate | 0 | - | 4.03 | 69,163 |
| Animals Used in Food | 0 | - | 4.29 | 77,572 |
| Most Popular Fruits | 0 | - | 4.16 | 96,136 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,620 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,630 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,247 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,491 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,232 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,512 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,057 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,629 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,926 |
