| Things Named For People #3 - Science | 0 | - | 4.85 | 53,953 |
| Elemental Words | 0 | - | 4.96 | 52,269 |
| Body Part Words | 0 | - | 4.43 | 145,927 |
| International Scientific Units | 0 | - | 4.95 | 156,745 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,742 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,648 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,265 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,626 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,790 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,241,077 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,810 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,961 |
| Elements by Symbol | 0 | - | 4.92 | 197,136 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,623 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,185 |
| Noble Gases | 0 | - | 4.89 | 78,130 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,546 |
| Periodic Table Symbols | 0 | - | 4.97 | 72,130 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,618 |
| Name the Virus | 0 | - | 4.87 | 76,724 |
| Medical Vocabulary | 0 | - | 4.54 | 59,075 |
| Major Taxonomic Ranks | 0 | - | 4.55 | 80,515 |
| Famous Scientists | 0 | - | 4.57 | 42,634 |
| Human Body A-Z | 0 | - | 4.51 | 129,138 |
| "Ologies" Quiz | 0 | - | 4.34 | 97,114 |
| Metals of Antiquity | 0 | - | 4.95 | 93,410 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,812 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,308 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,566 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,144 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,219 |
| Medical Specialties | 0 | - | 4.32 | 91,749 |
| Name a Valid Word #1 | 0 | - | 4.88 | 119,734 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,419 |
| Scientific Names | 0 | - | 4.32 | 78,437 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,963 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,523 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,996 |
| Random Symbol to Element | 0 | - | 4.88 | 93,015 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,682 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,487 |
| Astronomy Quiz | 0 | - | 4.90 | 82,538 |
| Body Part Cliches | 0 | - | 4.43 | 123,285 |
| Bones of the Human Body | 0 | - | 4.52 | 42,338 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,324 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,135 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,841 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,540 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,110 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,651 |
| Science General Knowledge #1 | 0 | - | 4.54 | 165,883 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,732 |
| Science General Knowledge #3 | 0 | - | 4.56 | 108,534 |
| Word Chain - Science | 0 | - | 4.59 | 54,857 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,685 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,554 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,096,993 |
| Environmental Issues | 0 | - | 4.54 | 26,826 |
| Name a Valid Word #2 | 0 | - | 4.49 | 82,332 |
| Video Games by Synonyms | 0 | - | 4.50 | 65,067 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,908 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,062 |
| Military History Vocabulary | 0 | - | 4.91 | 67,126 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,644 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,017 |
| First Names of Scientists | 0 | - | 4.50 | 56,822 |
| Groups of Two - Science | 0 | - | 4.26 | 48,307 |
| Science Decoder | 0 | - | 4.52 | 28,763 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,309 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,006 |
| Elements by Picture | 0 | - | 4.27 | 69,916 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,859 |
| Name a Valid Element | 0 | - | 4.64 | 70,008 |
| Medical Acronyms | 0 | - | 4.43 | 96,810 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,513 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,442 |
| One Syllable Words That Rhyme With Spain | 0 | - | 4.25 | 89,071 |
| Random Fast Typing - 5 Letter Words | 0 | - | 4.54 | 260,032 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,401 |
| Words for Government | 0 | - | 4.48 | 76,492 |
| Sports Terms #2 | 0 | - | 4.07 | 51,309 |
| Animal Adjectives | 0 | - | 4.77 | 59,996 |
| Vocabulary Mega-Challenge #1 | 0 | - | 4.64 | 159,038 |
| Vocabulary Mega-Challenge #2 | 0 | - | 4.47 | 63,644 |
| Band Names by Synonym #1 | 0 | - | 4.45 | 152,125 |
| American TV by Antonyms | 0 | - | 4.39 | 56,331 |
| Book Titles by Synonyms #1 | 0 | - | 4.54 | 75,860 |
| Birthstones by Month | 0 | - | 4.42 | 80,668 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,382 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,718 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,819 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,193 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 28,277 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,802 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,715 |
| Movie Titles with Shared First Words #1 | 0 | - | 4.48 | 49,048 |
| Ye Olde Professions | 0 | - | 4.67 | 156,709 |
| Mythical Creatures #2 | 0 | - | 4.05 | 111,738 |
| Three Letter Vocabulary Words | 0 | - | 4.15 | 63,268 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,376 |
| Scrabble Words From JETPUNK | 0 | - | 4.48 | 46,465 |
| Band Names by Synonym #2 | 0 | - | 4.29 | 40,171 |
| Band Names by Antonym | 0 | - | 4.13 | 72,478 |
| Obfuscations of Popular Cliches #2 | 0 | - | 4.45 | 41,963 |
| "Like" Similes #1 | 0 | - | 4.19 | 42,093 |
| Things Named for Inventors | 0 | - | 4.40 | 72,569 |
| Citrus Fruits | 0 | - | 3.63 | 42,067 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,471 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,674 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,654 |
| Astronomy Decoder | 0 | - | 4.49 | 38,038 |
| The Diseases They Had | 0 | - | 4.15 | 14,004 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,792 |
| Words that are Animals | 0 | - | 3.88 | 41,461 |
| Most Common Food and Drink Words | 0 | - | 4.04 | 23,668 |
| Most Common Demonyms in American Writing | 0 | - | 4.06 | 14,289 |
| Movie Titles with Shared First Words #2 | 0 | - | 4.62 | 27,118 |
| Song Titles with Shared First Words #1 | 0 | - | 4.79 | 25,899 |
| Name a Valid Word #3 | 0 | - | 3.71 | 47,526 |
| Sports Terms #1 | 0 | - | 3.87 | 168,587 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,290 |
| Movie Titles by Synonyms #1 | 0 | - | 4.46 | 126,444 |
| American TV by Synonyms | 0 | - | 4.32 | 30,488 |
| Movie Title Antonyms #2 | 0 | - | 4.46 | 80,681 |
| Obfuscations of Popular Cliches #1 | 0 | - | 4.37 | 50,327 |
| Obfuscations of Movie Titles #2 | 0 | - | 4.64 | 55,742 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 225,621 |
| Name the Constellations | 0 | - | 4.58 | 44,950 |
| Astronomy True or False | 0 | - | 4.39 | 36,452 |
| Book Titles with Shared First Words | 0 | - | 4.53 | 15,192 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,489 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,726 |
| U.S. TV Show Vocabulary Quiz | 0 | - | 4.15 | 23,433 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,389 |
| Sports Terms Quiz #3 | 0 | - | 3.46 | 13,022 |
| Religion Vocabulary | 0 | - | 4.14 | 30,172 |
| Rock Band Vocabulary | 0 | - | 3.98 | 46,112 |
| First Name Vocabulary #1 | 0 | - | 3.84 | 48,570 |
| First Name Vocabulary #2 | 0 | - | 3.97 | 36,778 |
| Animal Group Names | 0 | - | 4.06 | 23,187 |
| Six Letter Vocabulary Chain | 0 | - | 4.19 | 12,949 |
| Song Title Antonyms #1 | 0 | - | 4.11 | 87,518 |
| Song Title Antonyms #2 | 0 | - | 4.36 | 76,890 |
| Movie Titles by Synonyms #2 | 0 | - | 4.26 | 96,489 |
| Board Games by Synonym | 0 | - | 4.08 | 28,134 |
| American Candy by Alternate Definition | 0 | - | 4.04 | 19,357 |
| Movie Titles by Synonyms #3 | 0 | - | 4.25 | 65,821 |
| Song Titles by Synonyms #2 | 0 | - | 4.36 | 56,948 |
| Song Titles by Synonyms #1 | 0 | - | 4.18 | 69,660 |
| Obfuscations of Song Titles #1 | 0 | - | 4.38 | 34,632 |
| Obfuscations of Song Titles #2 | 0 | - | 4.53 | 27,252 |
| "As" Similes #1 | 0 | - | 4.15 | 29,866 |
| "As" Similes #2 | 0 | - | 3.79 | 35,459 |
| "Like" Similes #2 | 0 | - | 3.82 | 37,999 |
| Foods Named for Places | 0 | - | 3.60 | 38,296 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,626 |
| The Venus Quiz | 0 | - | 4.21 | 6,921 |
| Jewish Words | 0 | - | 4.15 | 31,200 |
| Horse Vocabulary | 0 | - | 4.23 | 22,733 |
| Movie Title Vocabulary Quiz #2 | 0 | - | 4.02 | 21,180 |
| Rhyming Vocabulary #1 | 0 | - | 3.86 | 9,453 |
| Five Letter Vocabulary Chain | 0 | - | 3.78 | 19,758 |
| Japanese Loanwords | 0 | - | 4.47 | 84,608 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,744 |
| Idioms by Synonyms | 0 | - | 4.22 | 15,683 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,410 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,947 |
| First Names by Slang Meaning | 0 | - | 3.66 | 9,884 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,906 |
| Native American Words | 0 | - | 4.26 | 24,764 |
| Song Titles by Synonyms #3 | 0 | - | 3.98 | 26,681 |
| Movie Titles by Synonyms #4 | 0 | - | 3.86 | 24,545 |
| Elements Named for Countries | 0 | - | 4.53 | 24,679 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,706 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,453 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,436 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,263 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.09 | 26,324 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,707 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,152 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,625 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,615 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,979 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,805 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,504 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,637 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,519 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,625 |
| Least-Forested Countries | 0 | - | 4.53 | 65,180 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,416 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,464 |
| Most Forested European Countries | 0 | - | 4.80 | 75,300 |
| Least Forested European Countries | 0 | - | 4.25 | 54,006 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,692 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,809 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,506 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,052 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,633 |
| Countries with Glaciers | 0 | - | 4.97 | 105,386 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,142 |
