| Science General Knowledge #2 | 0 | - | 4.48 | 119,515 |
| Random Symbol to Element | 0 | - | 4.88 | 93,637 |
| International Scientific Units | 0 | - | 4.95 | 157,775 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,160 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,975 |
| Word Chain - Science | 0 | - | 4.59 | 55,078 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,255,389 |
| The Sun Quiz | 0 | - | 4.93 | 34,962 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,310 |
| First Names of Scientists | 0 | - | 4.51 | 57,132 |
| Groups of Two - Science | 0 | - | 4.26 | 48,425 |
| Science Decoder | 0 | - | 4.52 | 28,833 |
| Elements by Symbol | 0 | - | 4.92 | 198,232 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,313 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,162 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,601 |
| Noble Gases | 0 | - | 4.89 | 78,659 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,927 |
| Periodic Table Symbols | 0 | - | 4.97 | 75,947 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,183 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,303 |
| Name a Valid Element | 0 | - | 4.67 | 70,311 |
| Name the Virus | 0 | - | 4.87 | 77,004 |
| History General Knowledge #13 | 0 | - | 4.69 | 49,879 |
| Bread Alone | 0 | - | 4.48 | 27,180 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 264,557 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 133,499 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 187,420 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 152,463 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,838 |
| Geography General Knowledge #8 | 0 | - | 4.44 | 150,972 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 157,397 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,741 |
| Geography General Knowledge #12 | 0 | - | 4.78 | 125,141 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 68,271 |
| History General Knowledge #1 | 0 | - | 4.55 | 128,957 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,876 |
| History General Knowledge #6 | 0 | - | 4.49 | 89,229 |
| History General Knowledge #10 | 0 | - | 4.43 | 78,191 |
| History General Knowledge #11 | 0 | - | 4.45 | 73,029 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,998 |
| Famous Scientists | 0 | - | 4.57 | 42,791 |
| Country Decoders #1 | 0 | - | 4.45 | 43,777 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,839 |
| Citrus Fruits | 0 | - | 3.66 | 42,132 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,192 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,934 |
| Elemental Words | 0 | - | 4.97 | 52,485 |
| Metals of Antiquity | 0 | - | 4.95 | 93,780 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,909 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,832 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,455 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,660 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 277,003 |
| How Do You Like Them Apples? | 0 | - | 4.33 | 23,081 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 181,218 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 149,315 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 132,251 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,961 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,995 |
| History General Knowledge #8 | 0 | - | 4.32 | 84,248 |
| History General Knowledge #9 | 0 | - | 4.40 | 80,184 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,452 |
| History General Knowledge #2 | 0 | - | 4.32 | 113,437 |
| History General Knowledge #4 | 0 | - | 4.33 | 111,382 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,816 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,984 |
| Astronomy Decoder | 0 | - | 4.48 | 38,167 |
| Scientific Names | 0 | - | 4.32 | 78,665 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,416 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 89,019 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,949 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,943 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,644,425 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,871 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,073 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,509 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,735 |
| Astronomy Quiz | 0 | - | 4.90 | 83,057 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,108 |
| Solar System Trivia | 0 | - | 4.93 | 46,994 |
| Body Part Cliches | 0 | - | 4.44 | 123,620 |
| Bones of the Human Body | 0 | - | 4.51 | 43,357 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,755 |
| Italian Name Translation | 0 | - | 4.83 | 47,682 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,335 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,762 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,335 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,722 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,250 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,660 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,132 |
| Disney Animated Characters | 0 | - | 4.88 | 602,435 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,654 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,830 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,855 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,762 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,566 |
| Countries with Four Letters | 0 | - | 4.99 | 424,906 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,599 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,218 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,777 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,188 |
| Name a Valid World City | 0 | - | 4.84 | 71,747 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,562 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,424 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,146 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,236 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,593 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,248 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 306,146 |
| Islands by Country #1 | 0 | - | 4.90 | 176,016 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,049 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,388 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,258 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,707 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,739 |
| Country Decoders #2 | 0 | - | 4.12 | 26,865 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 31,030 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,159 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,622 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,021 |
| Country Chain | 0 | - | 4.96 | 218,057 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,225 |
| Cold War Decoder | 0 | - | 4.83 | 52,540 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,732 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,299 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,179 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,851 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,249 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,295 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,221 |
| Name a Valid Country #6 | 0 | - | 4.95 | 141,986 |
| Name a Valid Country #7 | 0 | - | 4.91 | 131,112 |
| Name a Valid Country #8 | 0 | - | 4.86 | 100,325 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,477 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,870 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,407 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,881 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,886 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,716 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,781 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,319 |
| Environmental Issues | 0 | - | 4.54 | 26,888 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,657 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,612 |
| People With Place Names | 0 | - | 4.01 | 39,803 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,180 |
| "Son" Last Names | 0 | - | 4.47 | 42,617 |
| Shared First Names #2 | 0 | - | 4.53 | 45,782 |
| People with J Initials | 0 | - | 4.51 | 55,554 |
| History Analogies #1 | 0 | - | 4.53 | 90,139 |
| History Analogies #2 | 0 | - | 4.49 | 77,375 |
| History Analogies #3 | 0 | - | 4.61 | 80,833 |
| English Idioms #1 | 0 | - | 4.45 | 146,244 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,482 |
| Clothing Idioms | 0 | - | 4.41 | 34,290 |
| Are You a Nerd? | 0 | - | 4.35 | 45,071 |
| The Eleven Colors | 0 | - | 4.74 | 235,757 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,382 |
| King in the Answers | 0 | - | 4.42 | 50,310 |
| Super in the Answers | 0 | - | 4.52 | 110,631 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,618 |
| Five Letter Geography #3 | 0 | - | 4.62 | 131,831 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,887 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,838 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,906 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 76,696 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,487 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,656 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,914 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,174 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,679 |
| Random History by Country | 0 | - | 4.53 | 34,970 |
| Geography Decoder | 0 | - | 4.53 | 75,784 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,786 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,697 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,402 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,570 |
| Fruits by Picture | 0 | - | 4.19 | 808,650 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,547 |
| Answers are Beverages | 0 | - | 4.06 | 61,510 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,614 |
| Types of Food | 0 | - | 4.25 | 90,225 |
| The Foods they Ate | 0 | - | 4.03 | 69,542 |
| Animals Used in Food | 0 | - | 4.28 | 78,343 |
| Most Popular Fruits | 0 | - | 4.16 | 96,866 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,875 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,507 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,079 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,920 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 737,634 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,617 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,116 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,633 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,219 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,793 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,502 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,559 |
