| Science General Knowledge #3 | 0 | - | 4.56 | 108,405 |
| Random Symbol to Element | 0 | - | 4.88 | 92,988 |
| International Scientific Units | 0 | - | 4.95 | 156,692 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,726 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,096,740 |
| Word Chain - Science | 0 | - | 4.59 | 54,851 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,240,081 |
| The Sun Quiz | 0 | - | 4.93 | 34,621 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,707 |
| First Names of Scientists | 0 | - | 4.50 | 56,782 |
| Groups of Two - Science | 0 | - | 4.26 | 48,301 |
| Science Decoder | 0 | - | 4.52 | 28,759 |
| Elements by Symbol | 0 | - | 4.92 | 197,054 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,583 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,999 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,171 |
| Noble Gases | 0 | - | 4.89 | 78,106 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,529 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,075 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,588 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,838 |
| Name a Valid Element | 0 | - | 4.64 | 69,987 |
| Name the Virus | 0 | - | 4.87 | 76,711 |
| Bread Alone | 0 | - | 4.48 | 27,111 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 263,077 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 132,806 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 186,636 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 151,827 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,194 |
| Geography General Knowledge #8 | 0 | - | 4.44 | 150,250 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 156,780 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,235 |
| Geography General Knowledge #12 | 0 | - | 4.80 | 124,440 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 67,846 |
| History General Knowledge #1 | 0 | - | 4.55 | 128,192 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,334 |
| History General Knowledge #6 | 0 | - | 4.49 | 88,878 |
| History General Knowledge #10 | 0 | - | 4.43 | 77,834 |
| History General Knowledge #11 | 0 | - | 4.45 | 72,614 |
| Major Taxonomic Ranks | 0 | - | 4.56 | 80,472 |
| Famous Scientists | 0 | - | 4.57 | 42,622 |
| Country Decoders #1 | 0 | - | 4.45 | 43,686 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,331 |
| Citrus Fruits | 0 | - | 3.63 | 42,065 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,938 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,815 |
| Elemental Words | 0 | - | 4.96 | 52,253 |
| Metals of Antiquity | 0 | - | 4.95 | 93,389 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,279 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,558 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,124 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,366 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 274,081 |
| How Do You Like Them Apples? | 0 | - | 4.31 | 23,037 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 180,535 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 148,757 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 131,762 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,507 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,508 |
| History General Knowledge #8 | 0 | - | 4.32 | 83,949 |
| History General Knowledge #9 | 0 | - | 4.40 | 79,855 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,196 |
| History General Knowledge #2 | 0 | - | 4.32 | 112,936 |
| History General Knowledge #4 | 0 | - | 4.33 | 110,683 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,240 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,641 |
| Astronomy Decoder | 0 | - | 4.49 | 38,029 |
| Scientific Names | 0 | - | 4.32 | 78,421 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,618,792 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,731 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,875 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,877 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,500 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,992 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,608 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,472 |
| Astronomy Quiz | 0 | - | 4.90 | 82,504 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 137,098 |
| Solar System Trivia | 0 | - | 4.93 | 46,575 |
| Body Part Cliches | 0 | - | 4.43 | 123,276 |
| Bones of the Human Body | 0 | - | 4.52 | 42,278 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,120 |
| Italian Name Translation | 0 | - | 4.82 | 46,496 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,649 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,099,939 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,434 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,096 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,356 |
| 7 Deadly Sins | 0 | - | 4.88 | 399,703 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,596 |
| Disney Animated Characters | 0 | - | 4.88 | 601,198 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,480 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,779 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,817 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,805 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,087 |
| Countries with Four Letters | 0 | - | 4.99 | 421,982 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,967 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,937 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,314 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,691 |
| Name a Valid World City | 0 | - | 4.83 | 71,080 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,402 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,439 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,110 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,621 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,530 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,809 |
| Islands by Country #1 | 0 | - | 4.88 | 175,196 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,457 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,797 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,677 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,643 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,674 |
| Country Decoders #2 | 0 | - | 4.12 | 26,805 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,955 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,482 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,255 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 179,850 |
| Country Chain | 0 | - | 4.96 | 216,962 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,363 |
| Cold War Decoder | 0 | - | 4.83 | 52,319 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,130 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,991 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,767 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,281 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,393 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,292 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,671 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,191 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,065 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,434 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,424 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,796 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,977 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,264 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,603 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,679 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,542 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,584 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,769 |
| Environmental Issues | 0 | - | 4.54 | 26,822 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 719,894 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,417 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,364 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,507 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 45,662 |
| "Son" Last Names | 0 | - | 4.47 | 42,153 |
| Shared First Names #2 | 0 | - | 4.53 | 45,321 |
| People with J Initials | 0 | - | 4.51 | 55,418 |
| History Analogies #1 | 0 | - | 4.53 | 89,953 |
| History Analogies #2 | 0 | - | 4.49 | 77,188 |
| History Analogies #3 | 0 | - | 4.61 | 80,629 |
| English Idioms #1 | 0 | - | 4.45 | 145,398 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,382 |
| Clothing Idioms | 0 | - | 4.41 | 34,186 |
| Are You a Nerd? | 0 | - | 4.35 | 44,839 |
| The Eleven Colors | 0 | - | 4.74 | 235,033 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,066 |
| King in the Answers | 0 | - | 4.42 | 50,067 |
| Super in the Answers | 0 | - | 4.52 | 109,956 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,363 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,454 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,595 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,615 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,699 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,462 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,068 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,539 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,566 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,924 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,568 |
| Random History by Country | 0 | - | 4.53 | 34,835 |
| Geography Decoder | 0 | - | 4.53 | 75,605 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,618 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,549 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,275 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,405 |
| Fruits by Picture | 0 | - | 4.19 | 807,013 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,409 |
| Answers are Beverages | 0 | - | 4.10 | 61,346 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,454 |
| Types of Food | 0 | - | 4.25 | 89,938 |
| The Foods they Ate | 0 | - | 4.03 | 69,429 |
| Animals Used in Food | 0 | - | 4.28 | 78,085 |
| Most Popular Fruits | 0 | - | 4.16 | 96,598 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,770 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,194 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,852 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,262 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,899 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,594 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,006 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,947 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,777 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,081 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,316 |
| The Only Country ... | 0 | - | 4.91 | 80,922 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 124,040 |
