| Science General Knowledge #2 | 0 | - | 4.48 | 119,493 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,401 |
| Random Symbol to Element | 0 | - | 4.88 | 93,582 |
| International Scientific Units | 0 | - | 4.95 | 157,731 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,151 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,839 |
| Word Chain - Science | 0 | - | 4.59 | 55,069 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,254,740 |
| The Sun Quiz | 0 | - | 4.93 | 34,952 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,290 |
| First Names of Scientists | 0 | - | 4.51 | 57,122 |
| Groups of Two - Science | 0 | - | 4.26 | 48,421 |
| Science Decoder | 0 | - | 4.52 | 28,831 |
| Elements by Symbol | 0 | - | 4.92 | 198,172 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,259 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,155 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,559 |
| Noble Gases | 0 | - | 4.89 | 78,626 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,902 |
| Periodic Table Symbols | 0 | - | 4.97 | 73,158 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,137 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,268 |
| Name a Valid Element | 0 | - | 4.67 | 70,295 |
| Name the Virus | 0 | - | 4.87 | 76,988 |
| Bread Alone | 0 | - | 4.48 | 27,176 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 264,510 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 133,480 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 187,379 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 152,444 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,817 |
| Geography General Knowledge #8 | 0 | - | 4.44 | 150,944 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 157,376 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,725 |
| Geography General Knowledge #12 | 0 | - | 4.78 | 125,126 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 68,257 |
| History General Knowledge #1 | 0 | - | 4.55 | 128,936 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,860 |
| History General Knowledge #6 | 0 | - | 4.49 | 89,222 |
| History General Knowledge #10 | 0 | - | 4.43 | 78,182 |
| History General Knowledge #11 | 0 | - | 4.45 | 73,017 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,976 |
| Famous Scientists | 0 | - | 4.57 | 42,784 |
| Country Decoders #1 | 0 | - | 4.45 | 43,772 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,815 |
| Citrus Fruits | 0 | - | 3.66 | 42,130 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,185 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,924 |
| Elemental Words | 0 | - | 4.97 | 52,471 |
| Metals of Antiquity | 0 | - | 4.95 | 93,763 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,896 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,820 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,446 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,646 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 276,901 |
| How Do You Like Them Apples? | 0 | - | 4.33 | 23,080 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 181,197 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 149,295 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 132,239 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,952 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,987 |
| History General Knowledge #8 | 0 | - | 4.32 | 84,241 |
| History General Knowledge #9 | 0 | - | 4.40 | 80,175 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,445 |
| History General Knowledge #2 | 0 | - | 4.32 | 113,419 |
| History General Knowledge #4 | 0 | - | 4.33 | 111,368 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,781 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,964 |
| Astronomy Decoder | 0 | - | 4.48 | 38,161 |
| Scientific Names | 0 | - | 4.32 | 78,651 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,407 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,643,173 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 89,000 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,945 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,940 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,855 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,065 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,485 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,720 |
| Astronomy Quiz | 0 | - | 4.90 | 83,034 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,074 |
| Solar System Trivia | 0 | - | 4.93 | 46,979 |
| Body Part Cliches | 0 | - | 4.44 | 123,611 |
| Bones of the Human Body | 0 | - | 4.51 | 43,320 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,741 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,504 |
| Italian Name Translation | 0 | - | 4.83 | 47,649 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,307 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,348 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,248 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,646 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,205 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,552 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,111 |
| Disney Animated Characters | 0 | - | 4.88 | 602,386 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,648 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,829 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,854 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,724 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,463 |
| Countries with Four Letters | 0 | - | 4.99 | 424,795 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,533 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,209 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,760 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,178 |
| Name a Valid World City | 0 | - | 4.84 | 71,724 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,373 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,143 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,210 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,221 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 306,098 |
| Islands by Country #1 | 0 | - | 4.90 | 175,830 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,013 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,357 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,221 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,703 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,737 |
| Country Decoders #2 | 0 | - | 4.12 | 26,859 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 31,025 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,141 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,574 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,964 |
| Country Chain | 0 | - | 4.96 | 217,972 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,152 |
| Cold War Decoder | 0 | - | 4.83 | 52,528 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,699 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,284 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,038 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,594 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,078 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,131 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,074 |
| Name a Valid Country #6 | 0 | - | 4.95 | 140,978 |
| Name a Valid Country #7 | 0 | - | 4.91 | 130,971 |
| Name a Valid Country #8 | 0 | - | 4.86 | 100,206 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,422 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,812 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,465 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,571 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,404 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,868 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,876 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,710 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,773 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,304 |
| Environmental Issues | 0 | - | 4.54 | 26,885 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,646 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,609 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 736,953 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,611 |
| People With Place Names | 0 | - | 4.01 | 39,796 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,167 |
| "Son" Last Names | 0 | - | 4.47 | 42,611 |
| Shared First Names #2 | 0 | - | 4.53 | 45,767 |
| People with J Initials | 0 | - | 4.51 | 55,550 |
| History Analogies #1 | 0 | - | 4.53 | 90,131 |
| History Analogies #2 | 0 | - | 4.49 | 77,368 |
| History Analogies #3 | 0 | - | 4.61 | 80,826 |
| English Idioms #1 | 0 | - | 4.45 | 146,234 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,479 |
| Clothing Idioms | 0 | - | 4.41 | 34,289 |
| Are You a Nerd? | 0 | - | 4.35 | 45,064 |
| The Eleven Colors | 0 | - | 4.74 | 235,736 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,368 |
| King in the Answers | 0 | - | 4.42 | 50,306 |
| Super in the Answers | 0 | - | 4.52 | 110,626 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,603 |
| Five Letter Geography #3 | 0 | - | 4.62 | 131,763 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,820 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,786 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,860 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,840 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,313 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,614 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,857 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,146 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,651 |
| Random History by Country | 0 | - | 4.53 | 34,969 |
| Geography Decoder | 0 | - | 4.53 | 75,780 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,779 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,688 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,397 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,565 |
| Fruits by Picture | 0 | - | 4.19 | 808,598 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,541 |
| Answers are Beverages | 0 | - | 4.06 | 61,506 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,606 |
| Types of Food | 0 | - | 4.25 | 90,216 |
| The Foods they Ate | 0 | - | 4.03 | 69,539 |
| Animals Used in Food | 0 | - | 4.28 | 78,336 |
| Most Popular Fruits | 0 | - | 4.16 | 96,858 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,871 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,500 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,066 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,734 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,102 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,612 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,213 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,763 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,470 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,540 |
