| Elements - Sudden Death | 0 | - | 4.92 | 136,009 |
| International Scientific Units | 0 | - | 4.95 | 158,391 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,354 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,261,574 |
| Elements by Symbol | 0 | - | 4.92 | 198,751 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,621 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,818 |
| Noble Gases | 0 | - | 4.89 | 78,861 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 65,105 |
| Periodic Table Symbols | 0 | - | 4.97 | 80,853 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,453 |
| Name the Virus | 0 | - | 4.87 | 77,132 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 81,161 |
| Famous Scientists | 0 | - | 4.58 | 42,860 |
| Memory Test - Sudden Death | 0 | - | 4.92 | 352,043 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,295 |
| Elemental Words | 0 | - | 4.97 | 52,570 |
| Metals of Antiquity | 0 | - | 4.95 | 93,956 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,966 |
| Olympic Host Countries - Sudden Death | 0 | - | 4.91 | 121,543 |
| True or False - Sudden Death | 0 | - | 4.91 | 157,694 |
| Countries that Use the Euro - Sudden Death | 0 | - | 4.93 | 255,995 |
| Be Happy - Sudden Death | 0 | - | 4.90 | 120,609 |
| Landlocked Countries - Sudden Death | 0 | - | 4.97 | 169,821 |
| Scientific Names | 0 | - | 4.32 | 78,740 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,508 |
| Famous Effects | 0 | - | 4.59 | 12,848 |
| Click the Planet | 0 | - | 4.96 | 92,280 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,997 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,099 |
| Random Symbol to Element | 0 | - | 4.88 | 94,076 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,802 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,844 |
| Astronomy Quiz | 0 | - | 4.90 | 83,334 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,519 |
| Solar System Trivia | 0 | - | 4.93 | 47,206 |
| Body Part Cliches | 0 | - | 4.44 | 123,674 |
| Bones of the Human Body | 0 | - | 4.51 | 43,623 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,933 |
| Capital Cities - Sudden Death | 0 | - | 4.99 | 284,992 |
| Countries With 100 Million People - Sudden Death | 0 | - | 4.97 | 198,351 |
| Countries With a Population Under 1 Million - Sudden Death | 0 | - | 4.93 | 86,998 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,163 |
| Click the Chemical Element | 0 | - | 4.96 | 81,411 |
| Name a Valid Answer - Science | 0 | - | 4.79 | 41,451 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,451 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,671 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.46 | 12,329 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,408 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,708 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,628 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,979 |
| Word Chain - Science | 0 | - | 4.59 | 55,170 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,967 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,767 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,847 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,507 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,787 |
| Environmental Issues | 0 | - | 4.54 | 26,914 |
| Arrow Puzzle #1 - Sudden Death | 0 | - | 4.77 | 110,655 |
| Prime Numbers - Sudden Death | 0 | - | 4.62 | 100,045 |
| Be Sad - Sudden Death | 0 | - | 4.74 | 77,489 |
| Equatorial Countries - Sudden Death | 0 | - | 4.78 | 60,012 |
| Ivy League Universities - Sudden Death | 0 | - | 4.74 | 52,734 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,234 |
| The Sun Quiz | 0 | - | 4.93 | 35,126 |
| First Names of Scientists | 0 | - | 4.51 | 57,237 |
| Groups of Two - Science | 0 | - | 4.26 | 48,470 |
| Science Vocabulary #1 | 0 | - | 4.34 | 72,205 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,244 |
| Science Decoder | 0 | - | 4.52 | 28,862 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,520 |
| Science True or False | 0 | - | 4.35 | 40,524 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,210 |
| Elements by Picture | 0 | - | 4.27 | 70,336 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 103,528 |
| Name a Valid Element | 0 | - | 4.68 | 70,424 |
| Medical Acronyms | 0 | - | 4.43 | 97,279 |
| Medical Vocabulary | 0 | - | 4.54 | 59,500 |
| Spielberg Movie Images - Sudden Death | 0 | - | 4.47 | 55,033 |
| Real People - Sudden Death #1 | 0 | - | 4.15 | 107,919 |
| Birds - Sudden Death | 0 | - | 4.54 | 68,696 |
| Tom Hanks Movies - Sudden Death | 0 | - | 4.57 | 64,632 |
| Most Populated Countries - Sudden Death | 0 | - | 4.67 | 79,269 |
| NBA Champion Players - Sudden Death | 0 | - | 4.56 | 132,683 |
| FIFA World Cup Host Countries - Sudden Death | 0 | - | 4.47 | 62,020 |
| Birthstones by Month | 0 | - | 4.44 | 88,166 |
| "Ologies" Quiz | 0 | - | 4.34 | 97,572 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,479 |
| Name the Metal Alloy | 0 | - | 4.73 | 14,072 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,977 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,332 |
| Element... or Pokémon? | 0 | - | 4.98 | 133,034 |
| Brightest Natural Objects in the Sky | 0 | - | 4.46 | 28,647 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,416 |
| Body Part Words | 0 | - | 4.43 | 146,417 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,961 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 177,101 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,922 |
| Human Body A-Z | 0 | - | 4.51 | 130,074 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 88,556 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,946 |
| Medical Specialties | 0 | - | 4.33 | 92,332 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,263 |
| Christmas Songs - Sudden Death | 0 | - | 4.21 | 51,278 |
| The Pluto Quiz | 0 | - | 4.61 | 9,938 |
| Citrus Fruits | 0 | - | 3.67 | 42,204 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,760 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,977 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,138 |
| Astronomy Decoder | 0 | - | 4.48 | 38,238 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,532 |
| The Mars Quiz | 0 | - | 4.55 | 18,740 |
| The Saturn Quiz | 0 | - | 4.54 | 11,598 |
| Planets - Multiple Choice | 0 | - | 4.39 | 53,849 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,832 |
| The Diseases They Had | 0 | - | 4.15 | 14,073 |
| Dumb it Down Doc | 0 | - | 4.13 | 65,192 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 227,790 |
| Name the Constellations | 0 | - | 4.63 | 48,269 |
| Astronomy True or False | 0 | - | 4.39 | 36,618 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,492 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,580 |
| The Venus Quiz | 0 | - | 4.21 | 6,967 |
| Countries with Glaciers | 0 | - | 4.97 | 105,829 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,196 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,529 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,695 |
| Elements Named for Countries | 0 | - | 4.52 | 24,984 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,775 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,976 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,604 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,540 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,564 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.10 | 26,931 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.98 | 110,032 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,196 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,986 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,739 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 60,189 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.25 | 25,924 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,875 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,913 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,079 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,773 |
| Least-Forested Countries | 0 | - | 4.53 | 65,431 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,655 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,729 |
| Most Forested European Countries | 0 | - | 4.80 | 75,695 |
| Least Forested European Countries | 0 | - | 4.25 | 54,200 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,944 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 37,956 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,688 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,355 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,793 |
| Super Bowl Winners - Sudden Death | 0 | - | 4.53 | 39,588 |
| Every European Flag - Sudden Death | 0 | - | 4.96 | 398,396 |
| Every American Flag - Sudden Death | 0 | - | 4.89 | 71,236 |
| Every African Flag - Sudden Death | 0 | - | 4.97 | 78,900 |
| Smallest 25 U.S. States - Sudden Death | 0 | - | 4.55 | 148,116 |
| NATO Members - Sudden Death | 0 | - | 4.95 | 154,683 |
| Modern Rappers - Sudden Death | 0 | - | 4.32 | 124,311 |
| U.S. Presidents - Sudden Death | 0 | - | 4.81 | 180,760 |
| Summer Olympics Host Cities - Sudden Death | 0 | - | 4.96 | 45,593 |
| Star Wars Picture Chain - Sudden Death | 0 | - | 4.52 | 106,585 |
| Michael Jackson Songs - Sudden Death | 0 | - | 4.66 | 97,154 |
| 13 American Colonies - Sudden Death | 0 | - | 4.90 | 48,298 |
| Red, White, & Blue Flags - Sudden Death | 0 | - | 4.67 | 192,351 |
| British Bands - Sudden Death | 0 | - | 4.60 | 96,362 |
| European Capitals - Sudden Death | 0 | - | 4.94 | 220,669 |
| Queen Songs - Sudden Death | 0 | - | 4.82 | 55,935 |
| ABBA Songs - Sudden Death | 0 | - | 4.65 | 46,688 |
| "C" Countries - World Map Sudden Death | 0 | - | 4.81 | 202,820 |
| Megacities - World Map Sudden Death | 0 | - | 4.92 | 157,881 |
| Real People - Sudden Death #2 (U.S.) | 0 | - | 4.57 | 80,736 |
| French People - Sudden Death | 0 | - | 4.67 | 28,699 |
| Martin Scorsese Movies - Sudden Death | 0 | - | 4.55 | 17,200 |
| Blue States - Sudden Death | 0 | - | 4.97 | 89,578 |
| U.S. State Capitals - Sudden Death | 0 | - | 4.80 | 132,351 |
| China's Neighbours - Sudden Death | 0 | - | 4.70 | 150,897 |
| Shakespeare Plays - Sudden Death | 0 | - | 4.86 | 60,509 |
| NBA MVPs - Sudden Death | 0 | - | 4.52 | 124,952 |
| American Singers – Sudden Death | 0 | - | 4.51 | 82,917 |
| NATO Phonetic Alphabet - Sudden Death | 0 | - | 4.93 | 139,086 |
| American Bands - Sudden Death | 0 | - | 4.51 | 72,362 |
| Eliminate European Cities - Sudden Death | 0 | - | 4.96 | 99,413 |
| Musical Movies - Sudden Death | 0 | - | 3.95 | 70,616 |
| Two Color Flags - Sudden Death | 0 | - | 4.96 | 104,578 |
| Indo-European Languages - Sudden Death | 0 | - | 4.77 | 37,485 |
| Countries With Same-Sex Marriage – Sudden Death | 0 | - | 4.26 | 72,089 |
| Muslim Countries - Sudden Death | 0 | - | 4.93 | 156,585 |
| K-Pop Groups - Sudden Death | 0 | - | 4.21 | 46,147 |
| North American Pro Sports Teams – Sudden Death | 0 | - | 4.56 | 54,749 |
| NBA Cities - Sudden Death | 0 | - | 4.74 | 69,174 |
| Imperial Japan or Die! - Sudden Death | 0 | - | 4.65 | 47,838 |
| Marvel Superheroes - Sudden Death | 0 | - | 4.90 | 120,633 |
| Books of the Bible - Sudden Death | 0 | - | 4.43 | 58,574 |
| 2000s Movies - Sudden Death | 0 | - | 4.49 | 25,286 |
| Star Spangled Banner - Sudden Death | 0 | - | 4.17 | 34,562 |
| British Cities - Sudden Death | 0 | - | 4.74 | 98,962 |
