| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,531 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,053 |
| Name a Valid Element | 0 | - | 4.67 | 70,152 |
| Random Symbol to Element | 0 | - | 4.88 | 93,221 |
| Name a Valid World City | 0 | - | 4.83 | 71,408 |
| International Scientific Units | 0 | - | 4.95 | 157,293 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,963 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,546 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,007 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,346 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,500 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,532 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,883 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,635 |
| Name a Valid Country #8 | 0 | - | 4.86 | 98,990 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,804 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,162 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,098,822 |
| Science General Knowledge #1 | 0 | - | 4.54 | 166,295 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,989 |
| Science General Knowledge #3 | 0 | - | 4.56 | 108,992 |
| Word Chain - Science | 0 | - | 4.59 | 54,957 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 45,965 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,953 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,247,551 |
| The Sun Quiz | 0 | - | 4.93 | 34,769 |
| First Names of Scientists | 0 | - | 4.51 | 56,968 |
| Groups of Two - Science | 0 | - | 4.26 | 48,363 |
| Science Decoder | 0 | - | 4.52 | 28,785 |
| Elements by Symbol | 0 | - | 4.92 | 197,633 |
| Speed Symbol by Element | 0 | - | 4.90 | 104,923 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,086 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,368 |
| Noble Gases | 0 | - | 4.89 | 78,397 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,714 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,610 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,885 |
| Name the Virus | 0 | - | 4.87 | 76,862 |
| Valid Answer - World History #2 | 0 | - | 4.38 | 47,224 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 40,665 |
| Name a Valid Answer - Music | 0 | - | 4.26 | 32,247 |
| Name a Valid Island | 0 | - | 4.78 | 68,979 |
| Name a Valid Answer - Movies | 0 | - | 4.43 | 19,547 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,755 |
| Famous Scientists | 0 | - | 4.57 | 42,710 |
| Name a Valid Country by Disputed Area | 0 | - | 4.63 | 49,007 |
| Name a Valid Country #9 | 0 | - | 4.51 | 46,289 |
| Citrus Fruits | 0 | - | 3.63 | 42,091 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,058 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,869 |
| Elemental Words | 0 | - | 4.97 | 52,365 |
| Metals of Antiquity | 0 | - | 4.95 | 93,571 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,723 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,713 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,295 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,446 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 275,551 |
| Name a Valid Word #1 | 0 | - | 4.88 | 119,946 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,797 |
| Astronomy Decoder | 0 | - | 4.49 | 38,094 |
| Scientific Names | 0 | - | 4.32 | 78,540 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,630,896 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,677 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,030 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,013 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,592 |
| Astronomy Quiz | 0 | - | 4.90 | 82,780 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,587 |
| Solar System Trivia | 0 | - | 4.93 | 46,773 |
| Body Part Cliches | 0 | - | 4.44 | 123,524 |
| Bones of the Human Body | 0 | - | 4.51 | 42,954 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,295 |
| Italian Name Translation | 0 | - | 4.83 | 47,154 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,002 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,668 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,237 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,811 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,732 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,227 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,860 |
| Disney Animated Characters | 0 | - | 4.88 | 601,824 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,571 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,212 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,421 |
| Countries with Four Letters | 0 | - | 4.99 | 423,181 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,212 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,080 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,506 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 67,920 |
| MLB Baseball Hall of Fame by Team | 0 | - | 4.15 | 10,546 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,914 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,868 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,128 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,911 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,892 |
| European History for Dummies | 0 | - | 4.83 | 90,044 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 305,411 |
| Islands by Country #1 | 0 | - | 4.88 | 175,443 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,616 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,003 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,788 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,786 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,990 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,224 |
| Country Chain | 0 | - | 4.96 | 217,346 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,281 |
| Cold War Decoder | 0 | - | 4.83 | 52,435 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,424 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,963 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,128 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,414 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,209 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,358 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,736 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,755 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,633 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,668 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,070 |
| Environmental Issues | 0 | - | 4.54 | 26,854 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 722,377 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,528 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,507 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,555 |
| "Son" Last Names | 0 | - | 4.47 | 42,445 |
| Shared First Names #2 | 0 | - | 4.53 | 45,575 |
| People with J Initials | 0 | - | 4.51 | 55,500 |
| History Analogies #1 | 0 | - | 4.53 | 90,028 |
| History Analogies #2 | 0 | - | 4.49 | 77,279 |
| History Analogies #3 | 0 | - | 4.61 | 80,715 |
| English Idioms #1 | 0 | - | 4.45 | 146,072 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,443 |
| Clothing Idioms | 0 | - | 4.41 | 34,240 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,919 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,639 |
| Are You a Nerd? | 0 | - | 4.35 | 44,949 |
| The Eleven Colors | 0 | - | 4.74 | 235,384 |
| Name a Valid Answer - General Knowledge #1 | 0 | - | 4.45 | 69,637 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,188 |
| King in the Answers | 0 | - | 4.42 | 50,214 |
| Super in the Answers | 0 | - | 4.52 | 110,476 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,476 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,595 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,689 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,688 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,775 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,603 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,195 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,570 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,706 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,031 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,600 |
| Random History by Country | 0 | - | 4.53 | 34,891 |
| Find The Mystery Country Using Color Clues - Randomized! | 0 | - | 4.98 | 2,169,594 |
| Geography Decoder | 0 | - | 4.53 | 75,699 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,705 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,616 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,343 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,488 |
| Fruits by Picture | 0 | - | 4.19 | 807,839 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,468 |
| Answers are Beverages | 0 | - | 4.06 | 61,421 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,517 |
| Types of Food | 0 | - | 4.25 | 90,074 |
| The Foods they Ate | 0 | - | 4.03 | 69,489 |
| Animals Used in Food | 0 | - | 4.28 | 78,194 |
| Most Popular Fruits | 0 | - | 4.16 | 96,738 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,835 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,347 |
| Name a Valid Word #2 | 0 | - | 4.49 | 82,442 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,603 |
| Name a Valid Answer - General Knowledge #2 | 0 | - | 4.50 | 35,306 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,007 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,071 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,095 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,668 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,118 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,306 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,025 |
| The Only Country ... | 0 | - | 4.91 | 81,344 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,519 |
| Random Countries by Borders | 0 | - | 4.99 | 82,594 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,031 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,347 |
| Random Point on Land to Country | 0 | - | 4.99 | 235,623 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 52,260 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,072 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,577 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,503 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,564 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,213 |
| Name a Valid Island Country | 0 | - | 4.96 | 115,099 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,004 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,948 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,052 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,375 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,327 |
| Science True or False | 0 | - | 4.35 | 40,354 |
| Elements by Picture | 0 | - | 4.27 | 70,056 |
| Medical Acronyms | 0 | - | 4.43 | 96,951 |
| Medical Vocabulary | 0 | - | 4.54 | 59,195 |
