| Random Symbol to Element | 0 | - | 4.86 | 82,179 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 150,572 |
| International Scientific Units | 0 | - | 4.96 | 136,293 |
| Electromagnetic Spectrum | 0 | - | 4.91 | 46,762 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,002,470 |
| Science General Knowledge #1 | 0 | - | 4.65 | 137,300 |
| Science General Knowledge #2 | 0 | - | 4.47 | 96,173 |
| Science General Knowledge #3 | 0 | - | 4.66 | 87,366 |
| Letter A Geography Chain | 0 | - | 4.50 | 59,313 |
| 6-Letter Movie Chain #3 | 0 | - | 4.42 | 32,199 |
| Elements of the Periodic Table Quiz | 0 | - | 5.00 | 1,909,355 |
| First Names of Scientists | 0 | - | 4.47 | 52,032 |
| Groups of Two - Science | 0 | - | 4.33 | 45,880 |
| Science Decoder | 0 | - | 4.51 | 27,206 |
| Elements by Symbol Quiz | 0 | - | 4.91 | 172,873 |
| Speed Symbol by Element | 0 | - | 4.89 | 89,553 |
| Answers are Elements #2 | 0 | - | 4.41 | 52,099 |
| Noble Gases | 0 | - | 4.82 | 59,180 |
| Elements that are Gases at Room Temperature | 0 | - | 4.84 | 57,195 |
| Periodic Table Symbols Quiz | 0 | - | 4.98 | 50,590 |
| Elements with One-Letter Symbols | 0 | - | 4.82 | 70,179 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 84,590 |
| Name a Valid Element | 0 | - | 4.72 | 63,501 |
| Medical Conditions Quiz | 0 | - | 4.84 | 114,868 |
| Name the Virus | 0 | - | 4.85 | 61,673 |
| 5-Letter Geography Chain #2 | 0 | - | 4.47 | 107,315 |
| 4-Letter Music Chain | 0 | - | 4.47 | 47,946 |
| 6-Letter Geography Chain #2 | 0 | - | 4.43 | 63,237 |
| 4-Letter Geography Chain #2 | 0 | - | 4.50 | 67,976 |
| 5-Letter History Chain #3 | 0 | - | 4.48 | 50,329 |
| 6-Letter History Chain #2 | 0 | - | 4.53 | 50,466 |
| 5-Letter History Chain #1 | 0 | - | 4.53 | 82,997 |
| Cities Chain #2 | 0 | - | 4.42 | 53,247 |
| Cities Chain #1 | 0 | - | 4.66 | 62,526 |
| 6-Letter Movie Chain #1 | 0 | - | 4.19 | 70,076 |
| 6-Letter Movie Chain #2 | 0 | - | 4.27 | 34,094 |
| Word Chain - Christmas | 0 | - | 4.49 | 46,040 |
| Major Taxonomic Ranks | 0 | - | 4.64 | 70,013 |
| Famous Scientists | 0 | - | 4.58 | 39,762 |
| Citrus Fruits | 0 | - | 3.56 | 40,594 |
| Things Named For People #3 - Science | 0 | - | 4.82 | 47,682 |
| Answers are Elements #1 | 0 | - | 4.32 | 50,689 |
| Elemental Words | 0 | - | 4.96 | 46,997 |
| Metals of Antiquity | 0 | - | 4.94 | 84,832 |
| Word Scramble - Body Parts | 0 | - | 4.35 | 167,464 |
| Three Letter Body Parts Quiz | 0 | - | 4.39 | 198,556 |
| One-Syllable Human Body Parts | 0 | - | 4.28 | 79,583 |
| Analogies of Countries #1 | 0 | - | 4.84 | 49,896 |
| 5-Letter Geography Chain #1 | 0 | - | 4.23 | 108,974 |
| 6-Letter Geography Chain #1 | 0 | - | 4.25 | 86,857 |
| 4-Letter Movie Chain #1 | 0 | - | 4.32 | 89,383 |
| 5-Letter Movie Chain #1 | 0 | - | 4.08 | 62,605 |
| 5-Letter Music Chain | 0 | - | 4.07 | 65,214 |
| 5-Letter Geography Chain #3 | 0 | - | 4.31 | 58,400 |
| Five Letter Geography #4 | 0 | - | 4.84 | 65,080 |
| 4-Letter History Chain #1 | 0 | - | 4.39 | 76,278 |
| 5-Letter History Chain #2 | 0 | - | 4.34 | 57,228 |
| 6-Letter History Chain #1 | 0 | - | 4.31 | 62,824 |
| 4-Letter History Chain #2 | 0 | - | 4.31 | 43,897 |
| 4-Letter History Chain #3 | 0 | - | 4.34 | 46,765 |
| 5-Letter Movie Chain #2 | 0 | - | 4.36 | 43,032 |
| 5-Letter Movie Chain #3 | 0 | - | 4.33 | 34,092 |
| 4-Letter Movie Chain #2 | 0 | - | 4.31 | 42,642 |
| Word Chain - Africa | 0 | - | 4.43 | 29,526 |
| Halloween Word Chain | 0 | - | 4.12 | 35,197 |
| Name a Valid Answer - Geography | 0 | - | 4.91 | 75,984 |
| Category Elimination - Elements | 0 | - | 4.66 | 47,221 |
| Astronomy Decoder | 0 | - | 4.51 | 34,983 |
| Scientific Names | 0 | - | 4.36 | 61,832 |
| Science Multiple Choice #1 | 0 | - | 4.57 | 79,307 |
| Chemical Elements with Short Names | 0 | - | 4.66 | 75,695 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 160,785 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.56 | 48,844 |
| Astronomy Quiz | 0 | - | 4.87 | 63,776 |
| Body Part Cliches | 0 | - | 4.42 | 118,554 |
| Songs that Start with the Same Word | 0 | - | 4.86 | 97,048 |
| Word Scramble - Countries | 0 | - | 4.87 | 1,906,091 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 127,693 |
| Solve the Secret Country #2 | 0 | - | 4.91 | 86,183 |
| Anagram Chain - Countries | 0 | - | 4.98 | 95,499 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 344,053 |
| Disney Animated Characters | 0 | - | 4.89 | 572,608 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.41 | 40,627 |
| Geography General Knowledge #12 | 0 | - | 4.82 | 97,326 |
| Geographic Groups of Two #1 | 0 | - | 4.98 | 218,565 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 381,988 |
| Countries with Four Letters | 0 | - | 4.99 | 374,412 |
| Europe Geography Decoder | 0 | - | 4.89 | 62,797 |
| Disney Character Chain | 0 | - | 4.11 | 28,707 |
| Word Chain - Asia | 0 | - | 4.31 | 27,631 |
| Baseball Word Chain | 0 | - | 4.15 | 15,114 |
| Love Chain Quiz | 0 | - | 4.01 | 28,930 |
| Eight Most Popular Berries | 0 | - | 4.42 | 87,551 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 57,726 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 43,391 |
| Countries but all Vowels are Changed to O | 0 | - | 4.84 | 33,378 |
| Simple Machines Quiz | 0 | - | 4.31 | 8,370 |
| Songs with Body Parts in the Title | 0 | - | 4.29 | 200,216 |
| 4-Letter Name Chain | 0 | - | 3.68 | 12,512 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 272,467 |
| Islands by Country #1 | 0 | - | 4.87 | 162,801 |
| Regions of Countries #1 | 0 | - | 4.96 | 149,108 |
| Regions of Countries #2 | 0 | - | 4.95 | 113,821 |
| Regions of Countries #3 | 0 | - | 4.81 | 83,257 |
| Random Geographic Groups of Five | 0 | - | 4.94 | 98,985 |
| Top Five Countries By Category #2 | 0 | - | 4.92 | 155,980 |
| Top Five Countries By Category #3 | 0 | - | 4.87 | 141,364 |
| Country Chain | 0 | - | 4.95 | 176,775 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 177,941 |
| Word Chain - South America | 0 | - | 4.48 | 21,819 |
| Name a Valid Year in History | 0 | - | 4.92 | 51,898 |
| Name a Valid Country #3 | 0 | - | 4.98 | 206,806 |
| Name a Valid Country #1 | 0 | - | 4.99 | 224,619 |
| Name a Valid Country #2 | 0 | - | 4.98 | 191,543 |
| Name a Valid Country #4 | 0 | - | 4.96 | 198,464 |
| Name a Valid Country #5 | 0 | - | 4.98 | 144,352 |
| Name a Valid Country #6 | 0 | - | 4.92 | 86,310 |
| Name a Valid Country #7 | 0 | - | 4.90 | 85,128 |
| Name a Valid Country #8 | 0 | - | 4.95 | 54,779 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,714 |
| Body Parts in History and Culture | 0 | - | 4.48 | 32,584 |
| Science Vocabulary #2 | 0 | - | 4.51 | 53,981 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.59 | 34,169 |
| Science Multiple Choice #2 | 0 | - | 4.35 | 32,846 |
| Most Common Elements in the Human Body | 0 | - | 4.72 | 138,854 |
| Lightest Chemical Elements A-Z | 0 | - | 4.56 | 30,819 |
| Environmental Issues | 0 | - | 4.52 | 25,240 |
| One Letter Answers #1 | 0 | - | 4.47 | 56,880 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.75 | 38,399 |
| Shared First Names #2 | 0 | - | 4.57 | 40,569 |
| People with J Initials | 0 | - | 4.51 | 42,735 |
| History Analogies #1 | 0 | - | 4.46 | 75,753 |
| History Analogies #2 | 0 | - | 4.51 | 64,184 |
| History Analogies #3 | 0 | - | 4.54 | 66,360 |
| English Idioms Quiz #1 | 0 | - | 4.44 | 133,401 |
| "Is" Cliches | 0 | - | 4.41 | 56,878 |
| Best-Selling Video Game Consoles | 0 | - | 4.79 | 215,886 |
| Are You a Nerd? | 0 | - | 4.32 | 38,796 |
| The Eleven Colors | 0 | - | 4.72 | 216,586 |
| Answers Contain King | 0 | - | 4.44 | 39,906 |
| Things that are "Super" | 0 | - | 4.53 | 96,072 |
| Four Letter Geography #1 | 0 | - | 4.75 | 82,346 |
| Four Letter Geography #2 | 0 | - | 4.41 | 58,189 |
| Five Letter Geography #3 | 0 | - | 4.63 | 106,059 |
| Six Letter Geography #1 | 0 | - | 4.42 | 107,854 |
| Six Letter Geography #2 | 0 | - | 4.74 | 62,294 |
| Six Letter Geography #3 | 0 | - | 4.52 | 76,242 |
| Seven Letter Geography #1 | 0 | - | 4.50 | 61,947 |
| Eight Letter Geography #1 | 0 | - | 4.42 | 35,865 |
| 4-Letter Word Chain Game #1 | 0 | - | 4.46 | 96,510 |
| 4-Letter Word Chain Game #5 | 0 | - | 4.42 | 89,211 |
| 6-Letter Word Chain Game #1 | 0 | - | 4.53 | 56,782 |
| 6-Letter Word Chain Game #2 | 0 | - | 4.55 | 61,196 |
| Five Letter Geography #1 | 0 | - | 4.48 | 141,267 |
| Geography Decoder | 0 | - | 4.55 | 71,139 |
| Continental Geography Decoder | 0 | - | 4.45 | 48,572 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.32 | 54,000 |
| Fruits by Picture | 0 | - | 4.19 | 728,350 |
| Plants as Key Ingredient | 0 | - | 4.38 | 42,950 |
| Answers are Beverages | 0 | - | 4.11 | 56,560 |
| Basic Cake Ingredients | 0 | - | 4.21 | 103,351 |
| Types of Food | 0 | - | 4.24 | 79,863 |
| The Foods they Ate | 0 | - | 4.05 | 66,370 |
| Animals Used in Food | 0 | - | 4.32 | 71,929 |
| Most Popular Fruits | 0 | - | 4.17 | 87,725 |
| Healthiest Fruits and Vegetables | 0 | - | 4.09 | 44,710 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.04 | 77,303 |
| Valid Answer - World History #1 | 0 | - | 4.59 | 42,327 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.89 | 50,382 |
| Song Titles with Shared First Words #1 | 0 | - | 4.86 | 20,700 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 160,052 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 66,936 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.83 | 46,059 |
| Top Five Countries By Fruit Production | 0 | - | 4.93 | 41,842 |
| The Only Country ... | 0 | - | 4.87 | 44,972 |
| 5-Letter American TV Chain | 0 | - | 3.75 | 11,569 |
| 4-Letter American TV Chain | 0 | - | 3.83 | 17,598 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 97,891 |
| Random Countries by Borders | 0 | - | 4.99 | 65,857 |
| Top Five Countries by Random Categories | 0 | - | 4.97 | 105,873 |
| Random Name a Valid Country | 0 | - | 4.99 | 165,675 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.95 | 104,763 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 281,180 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 205,286 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 196,458 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 167,168 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 64,543 |
| Name a Valid Island Country | 0 | - | 4.96 | 101,269 |
| Science Vocabulary #1 | 0 | - | 4.36 | 65,625 |
| Science Vocabulary #3 | 0 | - | 4.32 | 47,570 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.45 | 26,912 |
| Metals by Total Mined Value | 0 | - | 4.70 | 39,727 |
| Elements by Picture | 0 | - | 4.29 | 62,994 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 30,954 |
| Medical Vocabulary | 0 | - | 4.55 | 52,979 |
| Two Letter Answers #2 | 0 | - | 4.39 | 77,437 |
| Two Letter Answers #4 | 0 | - | 4.25 | 69,863 |
| Two Letter Answers #1 | 0 | - | 4.29 | 99,349 |
| Three Letter Answers #2 | 0 | - | 4.09 | 68,321 |
| Two Letter Answers #3 | 0 | - | 4.15 | 75,251 |
