| Random Symbol to Element | 0 | - | 4.88 | 92,855 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,835 |
| International Scientific Units | 0 | - | 4.95 | 156,493 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,657 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,694 |
| Science General Knowledge #1 | 0 | - | 4.54 | 165,550 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,477 |
| Science General Knowledge #3 | 0 | - | 4.56 | 107,582 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,511 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,237 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,237,095 |
| First Names of Scientists | 0 | - | 4.50 | 56,735 |
| Groups of Two - Science | 0 | - | 4.26 | 48,277 |
| Science Decoder | 0 | - | 4.52 | 28,736 |
| Elements by Symbol | 0 | - | 4.92 | 196,800 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,461 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,970 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,024 |
| Noble Gases | 0 | - | 4.89 | 78,000 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,457 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,901 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,479 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,731 |
| Name a Valid Element | 0 | - | 4.64 | 69,927 |
| Name the Virus | 0 | - | 4.87 | 76,649 |
| 4-Letter Music Chain | 0 | - | 4.48 | 53,314 |
| 4-Letter Geography Chain #2 | 0 | - | 4.53 | 87,574 |
| 4-Letter History Chain #1 | 0 | - | 4.41 | 84,949 |
| 5-Letter History Chain #3 | 0 | - | 4.47 | 66,357 |
| 6-Letter History Chain #2 | 0 | - | 4.51 | 57,462 |
| 5-Letter History Chain #1 | 0 | - | 4.54 | 102,130 |
| 4-Letter Movie Chain #3 | 0 | - | 4.50 | 59,484 |
| Cities Chain #2 | 0 | - | 4.42 | 56,308 |
| Cities Chain #1 | 0 | - | 4.61 | 66,566 |
| 6-Letter Movie Chain #1 | 0 | - | 4.21 | 74,849 |
| 6-Letter Movie Chain #2 | 0 | - | 4.28 | 37,573 |
| Word Chain - Christmas | 0 | - | 4.51 | 50,568 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,390 |
| Famous Scientists | 0 | - | 4.57 | 42,596 |
| Citrus Fruits | 0 | - | 3.63 | 42,040 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,883 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,794 |
| Elemental Words | 0 | - | 4.96 | 52,220 |
| Metals of Antiquity | 0 | - | 4.94 | 93,296 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,206 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,510 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,058 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,333 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 273,397 |
| 5-Letter Geography Chain #1 | 0 | - | 4.21 | 131,097 |
| 5-Letter Geography Chain #2 | 0 | - | 4.39 | 127,127 |
| 6-Letter Geography Chain #1 | 0 | - | 4.28 | 96,081 |
| 4-Letter Movie Chain #1 | 0 | - | 4.37 | 109,625 |
| 5-Letter Movie Chain #1 | 0 | - | 4.05 | 68,482 |
| 5-Letter Music Chain | 0 | - | 4.12 | 85,516 |
| 6-Letter Geography Chain #2 | 0 | - | 4.40 | 71,180 |
| 5-Letter Geography Chain #3 | 0 | - | 4.25 | 73,580 |
| 5-Letter History Chain #2 | 0 | - | 4.25 | 68,929 |
| 6-Letter History Chain #1 | 0 | - | 4.28 | 69,968 |
| 4-Letter History Chain #2 | 0 | - | 4.35 | 58,209 |
| 4-Letter History Chain #3 | 0 | - | 4.38 | 60,251 |
| 5-Letter Movie Chain #2 | 0 | - | 4.33 | 48,399 |
| 5-Letter Movie Chain #3 | 0 | - | 4.33 | 39,136 |
| 4-Letter Movie Chain #2 | 0 | - | 4.36 | 56,636 |
| Word Chain - Africa | 0 | - | 4.47 | 31,583 |
| Halloween Word Chain | 0 | - | 4.12 | 37,504 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,129 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,576 |
| Astronomy Decoder | 0 | - | 4.50 | 37,998 |
| Scientific Names | 0 | - | 4.32 | 78,378 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,613,826 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,431 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,974 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,270 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,436 |
| Astronomy Quiz | 0 | - | 4.90 | 82,376 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,871 |
| Solar System Trivia | 0 | - | 4.93 | 46,478 |
| Body Part Cliches | 0 | - | 4.43 | 123,252 |
| Bones of the Human Body | 0 | - | 4.52 | 42,071 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,054 |
| Italian Name Translation | 0 | - | 4.82 | 46,342 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,537 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,915 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,041 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,739 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,143 |
| 7 Deadly Sins | 0 | - | 4.88 | 399,056 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 108,455 |
| Disney Animated Characters | 0 | - | 4.88 | 600,950 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,448 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,649 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,808 |
| Countries with Four Letters | 0 | - | 4.99 | 421,460 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,875 |
| Disney Character Chain | 0 | - | 4.10 | 30,700 |
| Word Chain - Asia | 0 | - | 4.34 | 29,297 |
| Baseball Word Chain | 0 | - | 4.17 | 16,175 |
| French Food Words | 0 | - | 4.80 | 194,569 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,210 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,582 |
| Name a Valid World City | 0 | - | 4.83 | 70,919 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,128 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,200 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,105 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,532 |
| 4-Letter Name Chain | 0 | - | 3.71 | 13,300 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,351 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,524 |
| Islands by Country #1 | 0 | - | 4.88 | 175,067 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,349 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,696 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,604 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,348 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,425 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,647 |
| Country Chain | 0 | - | 4.96 | 216,784 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 215,908 |
| Cold War Decoder | 0 | - | 4.83 | 52,249 |
| Word Chain - South America | 0 | - | 4.51 | 23,871 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,016 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,920 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,431 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,519 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,968 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,887 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,260 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,883 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,781 |
| Name a Valid Country #8 | 0 | - | 4.85 | 98,148 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,357 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,872 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,246 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,546 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,637 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,511 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,358 |
| Environmental Issues | 0 | - | 4.54 | 26,810 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,774 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,354 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,300 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,491 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,557 |
| Shared First Names #2 | 0 | - | 4.53 | 45,254 |
| People with J Initials | 0 | - | 4.51 | 55,388 |
| History Analogies #1 | 0 | - | 4.53 | 89,914 |
| History Analogies #2 | 0 | - | 4.49 | 77,158 |
| History Analogies #3 | 0 | - | 4.61 | 80,603 |
| English Idioms #1 | 0 | - | 4.45 | 145,308 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,364 |
| Clothing Idioms | 0 | - | 4.41 | 34,165 |
| Are You a Nerd? | 0 | - | 4.35 | 44,788 |
| The Eleven Colors | 0 | - | 4.74 | 234,895 |
| Groups of Things - History #1 | 0 | - | 4.41 | 93,998 |
| King in the Answers | 0 | - | 4.42 | 49,958 |
| Super in the Answers | 0 | - | 4.52 | 109,857 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,316 |
| Five Letter Geography #3 | 0 | - | 4.61 | 131,372 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,558 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,576 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,661 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,397 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,001 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,522 |
| 4-Letter Word Chain Game #1 | 0 | - | 4.46 | 102,357 |
| 6-Letter Word Chain Game #1 | 0 | - | 4.51 | 62,501 |
| 6-Letter Word Chain Game #2 | 0 | - | 4.52 | 66,409 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,501 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,858 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,552 |
| Random History by Country | 0 | - | 4.53 | 34,811 |
| Geography Decoder | 0 | - | 4.53 | 75,558 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,571 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,370 |
| Fruits by Picture | 0 | - | 4.19 | 806,620 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,385 |
| Answers are Beverages | 0 | - | 4.10 | 61,303 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,412 |
| Types of Food | 0 | - | 4.25 | 89,870 |
| The Foods they Ate | 0 | - | 4.03 | 69,407 |
| Animals Used in Food | 0 | - | 4.28 | 78,017 |
| Most Popular Fruits | 0 | - | 4.16 | 96,538 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,752 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,114 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,804 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,684 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,862 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,421 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,975 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,371 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,530 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,914 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,877 |
| The Only Country ... | 0 | - | 4.91 | 80,748 |
| 5-Letter American TV Chain | 0 | - | 3.76 | 12,213 |
| 4-Letter American TV Chain | 0 | - | 3.83 | 18,287 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,810 |
| Random Countries by Borders | 0 | - | 4.99 | 82,265 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,898 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,638 |
