| Elements of the Periodic Table | 0 | - | 5.00 | 2,229,370 |
| Elements by Symbol | 0 | - | 4.92 | 196,215 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,037 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,683 |
| Noble Gases | 0 | - | 4.89 | 77,725 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,270 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,463 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,186 |
| Metals of Antiquity | 0 | - | 4.94 | 93,104 |
| Random Symbol to Element | 0 | - | 4.88 | 92,479 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,948 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 187,886 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,321 |
| International Scientific Units | 0 | - | 4.95 | 155,933 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,446 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,105 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,887 |
| Elements by Picture | 0 | - | 4.28 | 69,715 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,448 |
| Name a Valid Element | 0 | - | 4.64 | 69,758 |
| Name the Virus | 0 | - | 4.86 | 76,499 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,117 |
| Famous Scientists | 0 | - | 4.57 | 42,525 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,140 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,477 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,742 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,744 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,475 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,406 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,564 |
| Scientific Names | 0 | - | 4.32 | 78,274 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,238 |
| Astronomy Quiz | 0 | - | 4.90 | 82,067 |
| Body Part Cliches | 0 | - | 4.43 | 123,176 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,554 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,362 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,183 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,088 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,195 |
| Science General Knowledge #1 | 0 | - | 4.54 | 164,050 |
| Science General Knowledge #2 | 0 | - | 4.48 | 117,192 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,679 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,406 |
| Word Chain - Science | 0 | - | 4.59 | 54,591 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,540 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,419 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,093,453 |
| Environmental Issues | 0 | - | 4.54 | 26,771 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,764 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,640 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 194,960 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,859 |
| First Names of Scientists | 0 | - | 4.50 | 56,621 |
| Groups of Two - Science | 0 | - | 4.26 | 48,203 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,550 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,770 |
| Science Decoder | 0 | - | 4.52 | 28,683 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,228 |
| Medical Acronyms | 0 | - | 4.43 | 96,513 |
| Medical Vocabulary | 0 | - | 4.54 | 58,842 |
| Birthstones by Month | 0 | - | 4.41 | 80,550 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,494 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,337 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 28,019 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,436 |
| Body Part Words | 0 | - | 4.43 | 145,502 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,733 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,026 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,420 |
| Human Body A-Z | 0 | - | 4.51 | 128,839 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,915 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 118,818 |
| Medical Specialties | 0 | - | 4.32 | 91,163 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,123 |
| Colors by Alternate Definition | 0 | - | 4.02 | 53,982 |
| Movie Titles with Shared First Words #1 | 0 | - | 4.47 | 48,792 |
| Mythical Creatures #2 | 0 | - | 4.04 | 111,324 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,364 |
| Obfuscations of Popular Cliches #2 | 0 | - | 4.45 | 41,892 |
| "Like" Similes #1 | 0 | - | 4.19 | 42,060 |
| Capital City Etymologies | 0 | - | 4.77 | 63,114 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,772 |
| Citrus Fruits | 0 | - | 3.63 | 41,982 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,322 |
| Astronomy Decoder | 0 | - | 4.50 | 37,916 |
| The Diseases They Had | 0 | - | 4.15 | 13,955 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,824 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,701 |
| American to British Word Translation | 0 | - | 4.13 | 138,142 |
| Most Common Food and Drink Words | 0 | - | 4.03 | 23,583 |
| Movie Titles with Shared First Words #2 | 0 | - | 4.62 | 26,967 |
| Song Titles with Shared First Words #1 | 0 | - | 4.79 | 25,791 |
| Words for Leaders | 0 | - | 4.77 | 255,904 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,235 |
| Movie Titles by Synonyms #1 | 0 | - | 4.46 | 126,056 |
| Movie Title Antonyms #2 | 0 | - | 4.46 | 80,303 |
| Obfuscations of Popular Cliches #1 | 0 | - | 4.37 | 50,245 |
| Obfuscations of Movie Titles #2 | 0 | - | 4.64 | 55,526 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 224,529 |
| Name the Constellations | 0 | - | 4.58 | 44,817 |
| Astronomy True or False | 0 | - | 4.39 | 36,340 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,235 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,583 |
| British Spellings | 0 | - | 4.07 | 99,342 |
| Synonyms of Drunk | 0 | - | 3.65 | 41,000 |
| Book Titles with Shared First Words | 0 | - | 4.52 | 15,104 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,460 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,619 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,289 |
| First Name Vocabulary #1 | 0 | - | 3.84 | 48,389 |
| First Name Vocabulary #2 | 0 | - | 3.97 | 36,587 |
| Song Title Antonyms #1 | 0 | - | 4.10 | 87,381 |
| Song Title Antonyms #2 | 0 | - | 4.35 | 76,752 |
| Movie Titles by Synonyms #2 | 0 | - | 4.26 | 96,250 |
| American Candy by Alternate Definition | 0 | - | 4.04 | 19,336 |
| Movie Titles by Synonyms #3 | 0 | - | 4.25 | 65,616 |
| Song Titles by Synonyms #2 | 0 | - | 4.40 | 56,777 |
| Song Titles by Synonyms #1 | 0 | - | 4.18 | 69,420 |
| Obfuscations of Song Titles #1 | 0 | - | 4.38 | 34,558 |
| "As" Similes #1 | 0 | - | 4.15 | 29,844 |
| "As" Similes #2 | 0 | - | 3.79 | 35,434 |
| "Like" Similes #2 | 0 | - | 3.82 | 37,982 |
| Foods Named for Places | 0 | - | 3.61 | 38,260 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,563 |
| The Venus Quiz | 0 | - | 4.21 | 6,901 |
| British to American Word Translation | 0 | - | 3.74 | 254,890 |
| British Foods by Description | 0 | - | 3.94 | 48,287 |
| British and American Word Differences | 0 | - | 2.63 | 46,819 |
| Australian Slang | 0 | - | 4.25 | 28,532 |
| Movie Title Vocabulary Quiz #2 | 0 | - | 4.02 | 21,122 |
| Japanese Loanwords | 0 | - | 4.47 | 84,463 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,665 |
| Idioms by Synonyms | 0 | - | 4.22 | 15,655 |
| Book Titles by Synonyms #2 | 0 | - | 4.37 | 39,335 |
| Airports Named for People #2 | 0 | - | 4.23 | 15,365 |
| First Names by Slang Meaning | 0 | - | 3.66 | 9,855 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,838 |
| German Loan Words | 0 | - | 4.27 | 135,591 |
| Native American Words | 0 | - | 4.26 | 24,731 |
| Song Titles by Synonyms #3 | 0 | - | 3.98 | 26,618 |
| Movie Titles by Synonyms #4 | 0 | - | 3.86 | 24,490 |
| Elements Named for Countries | 0 | - | 4.52 | 24,531 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,675 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,161 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,376 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,052 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 23,522 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,598 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,130 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,386 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,526 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,873 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,732 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,255 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,459 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,838 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,525 |
| Least-Forested Countries | 0 | - | 4.53 | 65,018 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,289 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,314 |
| Most Forested European Countries | 0 | - | 4.80 | 75,084 |
| Least Forested European Countries | 0 | - | 4.25 | 53,873 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,542 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,731 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,399 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,849 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,512 |
| Countries with Glaciers | 0 | - | 4.97 | 104,827 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,099 |
| Portmanteaus Quiz #1 | 0 | - | 4.07 | 48,157 |
| Portmanteaus Quiz #2 | 0 | - | 4.52 | 66,180 |
| Irregular Plurals #1 | 0 | - | 4.52 | 142,171 |
| Shared Prefixes #1 | 0 | - | 4.63 | 73,934 |
| Shared Prefixes #2 | 0 | - | 4.23 | 49,428 |
| Shared Prefixes #3 | 0 | - | 4.19 | 55,194 |
| Word Shortenings #1 | 0 | - | 4.27 | 137,284 |
| Modern Word Abbreviations | 0 | - | 4.04 | 95,984 |
| Word Shortenings #2 | 0 | - | 4.08 | 85,661 |
| Types of Disasters | 0 | - | 4.09 | 80,971 |
| Palindromes Quiz | 0 | - | 4.18 | 93,998 |
| Slang Definitions #2 | 0 | - | 3.79 | 52,391 |
| Slang Definitions #3 | 0 | - | 4.05 | 39,918 |
| Slang Definitions #1 | 0 | - | 3.94 | 55,468 |
| Words for Communities | 0 | - | 4.29 | 12,305 |
| Phobias Quiz | 0 | - | 4.34 | 122,908 |
| Words that are Animals | 0 | - | 3.88 | 41,436 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,446 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,395 |
| Homophones #1 | 0 | - | 4.56 | 182,280 |
| Homophones #2 | 0 | - | 4.22 | 104,034 |
| Most Common English Nouns | 0 | - | 3.86 | 41,346 |
| Most Common English Verbs | 0 | - | 4.22 | 76,760 |
| Most Common English Adjectives With Hints | 0 | - | 3.85 | 16,044 |
| Word that Comes Before #1 | 0 | - | 4.30 | 34,998 |
| Onomatopoeia #1 | 0 | - | 3.69 | 54,688 |
| Onomatopoeia #2 | 0 | - | 3.71 | 16,628 |
| British to American Food Translation | 0 | - | 3.38 | 51,902 |
| English Words Formed by Latin and Greek Roots | 0 | - | 4.46 | 66,981 |
| Shared Prefixes #4 | 0 | - | 4.26 | 44,743 |
| Portmanteaus Quiz #3 | 0 | - | 4.04 | 33,515 |
