| Science General Knowledge #2 | 0 | - | 4.48 | 118,341 |
| Random Symbol to Element | 0 | - | 4.88 | 92,818 |
| International Scientific Units | 0 | - | 4.95 | 156,440 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,635 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,518 |
| Word Chain - Science | 0 | - | 4.59 | 54,781 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,236,515 |
| The Sun Quiz | 0 | - | 4.93 | 34,466 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,517 |
| First Names of Scientists | 0 | - | 4.50 | 56,725 |
| Groups of Two - Science | 0 | - | 4.26 | 48,272 |
| Science Decoder | 0 | - | 4.52 | 28,735 |
| Elements by Symbol | 0 | - | 4.92 | 196,748 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,430 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,964 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,883 |
| Noble Gases | 0 | - | 4.89 | 77,979 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,443 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,871 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,460 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,715 |
| Name a Valid Element | 0 | - | 4.64 | 69,913 |
| Name the Virus | 0 | - | 4.87 | 76,640 |
| Bread Alone | 0 | - | 4.48 | 27,093 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 262,730 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 132,517 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 186,399 |
| Geography General Knowledge #6 | 0 | - | 4.52 | 151,669 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 159,022 |
| Geography General Knowledge #8 | 0 | - | 4.45 | 150,090 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 156,609 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 110,106 |
| Geography General Knowledge #12 | 0 | - | 4.80 | 124,300 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 67,736 |
| History General Knowledge #1 | 0 | - | 4.55 | 128,032 |
| History General Knowledge #3 | 0 | - | 4.50 | 96,235 |
| History General Knowledge #6 | 0 | - | 4.49 | 88,810 |
| History General Knowledge #10 | 0 | - | 4.43 | 77,755 |
| History General Knowledge #11 | 0 | - | 4.45 | 72,528 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,365 |
| Famous Scientists | 0 | - | 4.57 | 42,588 |
| Country Decoders #1 | 0 | - | 4.45 | 43,651 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,089 |
| Citrus Fruits | 0 | - | 3.63 | 42,038 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,876 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,791 |
| Elemental Words | 0 | - | 4.96 | 52,208 |
| Metals of Antiquity | 0 | - | 4.94 | 93,273 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,192 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,502 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,045 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,326 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 273,282 |
| How Do You Like Them Apples? | 0 | - | 4.31 | 23,024 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 180,357 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 148,604 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 131,624 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,429 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,439 |
| History General Knowledge #8 | 0 | - | 4.32 | 83,888 |
| History General Knowledge #9 | 0 | - | 4.40 | 79,799 |
| History General Knowledge #12 | 0 | - | 4.32 | 67,146 |
| History General Knowledge #2 | 0 | - | 4.32 | 112,838 |
| History General Knowledge #4 | 0 | - | 4.33 | 110,575 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,112 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,564 |
| Astronomy Decoder | 0 | - | 4.50 | 37,987 |
| Scientific Names | 0 | - | 4.32 | 78,368 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,612,823 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,657 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,845 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,842 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,407 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,970 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,244 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,426 |
| Astronomy Quiz | 0 | - | 4.90 | 82,346 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,831 |
| Solar System Trivia | 0 | - | 4.93 | 46,460 |
| Body Part Cliches | 0 | - | 4.43 | 123,244 |
| Bones of the Human Body | 0 | - | 4.52 | 42,028 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,026 |
| Italian Name Translation | 0 | - | 4.82 | 46,307 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,517 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,557 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,975 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,682 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,110 |
| 7 Deadly Sins | 0 | - | 4.88 | 398,923 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,435 |
| Disney Animated Characters | 0 | - | 4.88 | 600,904 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,442 |
| April Fools' Quiz #1 | 0 | - | 3.84 | 59,771 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,814 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,628 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,739 |
| Countries with Four Letters | 0 | - | 4.99 | 421,357 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,811 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,863 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,191 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,568 |
| Name a Valid World City | 0 | - | 4.83 | 70,895 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,092 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,171 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,105 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,514 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,321 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,460 |
| Islands by Country #1 | 0 | - | 4.88 | 175,044 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,322 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,678 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,593 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,603 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.28 | 24,650 |
| Country Decoders #2 | 0 | - | 4.12 | 26,788 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,936 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,324 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,387 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,606 |
| Country Chain | 0 | - | 4.96 | 216,755 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,786 |
| Cold War Decoder | 0 | - | 4.83 | 52,239 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,993 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,906 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,376 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,376 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,893 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,822 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,176 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,836 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,744 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,109 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 75,208 |
| Name a Valid Country #10 | 0 | - | 4.93 | 42,564 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,353 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,838 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,241 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,527 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,623 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,495 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,549 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,339 |
| Environmental Issues | 0 | - | 4.54 | 26,805 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,569 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,339 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,290 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,487 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,540 |
| "Son" Last Names | 0 | - | 4.47 | 42,077 |
| Shared First Names #2 | 0 | - | 4.53 | 45,240 |
| People with J Initials | 0 | - | 4.51 | 55,385 |
| History Analogies #1 | 0 | - | 4.53 | 89,910 |
| History Analogies #2 | 0 | - | 4.49 | 77,152 |
| History Analogies #3 | 0 | - | 4.61 | 80,593 |
| English Idioms #1 | 0 | - | 4.45 | 145,288 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,358 |
| Clothing Idioms | 0 | - | 4.41 | 34,163 |
| Are You a Nerd? | 0 | - | 4.35 | 44,776 |
| The Eleven Colors | 0 | - | 4.74 | 234,861 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,979 |
| King in the Answers | 0 | - | 4.42 | 49,928 |
| Super in the Answers | 0 | - | 4.52 | 109,833 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,303 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,364 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,542 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,570 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,654 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,385 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,990 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,519 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,490 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,849 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,549 |
| Random History by Country | 0 | - | 4.53 | 34,805 |
| Geography Decoder | 0 | - | 4.53 | 75,550 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,565 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,501 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,231 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,356 |
| Fruits by Picture | 0 | - | 4.19 | 806,545 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,375 |
| Answers are Beverages | 0 | - | 4.10 | 61,294 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,398 |
| Types of Food | 0 | - | 4.25 | 89,724 |
| The Foods they Ate | 0 | - | 4.03 | 69,401 |
| Animals Used in Food | 0 | - | 4.28 | 78,002 |
| Most Popular Fruits | 0 | - | 4.16 | 96,528 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,746 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,102 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,799 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,569 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,853 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,373 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,959 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 321,283 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,508 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,898 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,795 |
| The Only Country ... | 0 | - | 4.91 | 80,723 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,781 |
