| Elements - Sudden Death | 0 | - | 4.91 | 128,031 |
| Body Part Cliches | 0 | - | 4.43 | 123,176 |
| Bones of the Human Body | 0 | - | 4.52 | 41,454 |
| International Scientific Units | 0 | - | 4.95 | 155,933 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,446 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,195 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,105 |
| 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 |
| Name the Virus | 0 | - | 4.86 | 76,499 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,117 |
| Famous Scientists | 0 | - | 4.57 | 42,525 |
| Body Part Words | 0 | - | 4.43 | 145,502 |
| Human Body A-Z | 0 | - | 4.51 | 128,839 |
| Memory Test - Sudden Death | 0 | - | 4.91 | 334,309 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,742 |
| Elemental Words | 0 | - | 4.96 | 52,107 |
| Metals of Antiquity | 0 | - | 4.94 | 93,104 |
| 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 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,915 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 118,818 |
| Olympic Host Countries - Sudden Death | 0 | - | 4.91 | 117,872 |
| True or False - Sudden Death | 0 | - | 4.93 | 150,085 |
| Countries that Use the Euro - Sudden Death | 0 | - | 4.93 | 246,209 |
| Be Happy - Sudden Death | 0 | - | 4.91 | 116,078 |
| Landlocked Countries - Sudden Death | 0 | - | 4.97 | 160,668 |
| Scientific Names | 0 | - | 4.32 | 78,274 |
| Famous Effects | 0 | - | 4.62 | 12,277 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,238 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,948 |
| Random Symbol to Element | 0 | - | 4.88 | 92,479 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 187,886 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,321 |
| Astronomy Quiz | 0 | - | 4.90 | 82,067 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,331 |
| Solar System Trivia | 0 | - | 4.93 | 46,301 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,183 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,554 |
| Click the Planet | 0 | - | 4.96 | 90,703 |
| Capital Cities - Sudden Death | 0 | - | 4.99 | 271,991 |
| Countries With 100 Million People - Sudden Death | 0 | - | 4.96 | 161,478 |
| Countries With a Population Under 1 Million - Sudden Death | 0 | - | 4.93 | 83,984 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,088 |
| Click the Chemical Element | 0 | - | 4.96 | 79,731 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,583 |
| Name a Valid Answer - Science | 0 | - | 4.79 | 40,354 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,470 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 12,077 |
| 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 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,465 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,093,453 |
| Environmental Issues | 0 | - | 4.54 | 26,771 |
| Arrow Puzzle #1 - Sudden Death | 0 | - | 4.78 | 106,080 |
| Prime Numbers - Sudden Death | 0 | - | 4.62 | 97,377 |
| Be Sad - Sudden Death | 0 | - | 4.74 | 75,860 |
| Equatorial Countries - Sudden Death | 0 | - | 4.75 | 58,590 |
| Ivy League Universities - Sudden Death | 0 | - | 4.74 | 50,937 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,764 |
| The Sun Quiz | 0 | - | 4.93 | 34,313 |
| 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 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,177 |
| Science True or False | 0 | - | 4.35 | 40,113 |
| 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 |
| Medical Acronyms | 0 | - | 4.43 | 96,513 |
| Medical Vocabulary | 0 | - | 4.54 | 58,842 |
| Spielberg Movie Images - Sudden Death | 0 | - | 4.47 | 53,558 |
| Real People - Sudden Death #1 | 0 | - | 4.13 | 105,244 |
| Birds - Sudden Death | 0 | - | 4.53 | 67,178 |
| Tom Hanks Movies - Sudden Death | 0 | - | 4.59 | 62,865 |
| Most Populated Countries - Sudden Death | 0 | - | 4.66 | 70,370 |
| NBA Champion Players - Sudden Death | 0 | - | 4.56 | 125,843 |
| FIFA World Cup Host Countries - Sudden Death | 0 | - | 4.49 | 53,934 |
| Birthstones by Month | 0 | - | 4.41 | 80,550 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,494 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,337 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,477 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,744 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,140 |
| Element... or Pokémon? | 0 | - | 4.98 | 130,853 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 28,019 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,436 |
| Planets - Multiple Choice | 0 | - | 4.41 | 53,329 |
| Medical Specialties | 0 | - | 4.32 | 91,163 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,123 |
| The Pluto Quiz | 0 | - | 4.61 | 9,805 |
| Citrus Fruits | 0 | - | 3.63 | 41,982 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,322 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,475 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,406 |
| Astronomy Decoder | 0 | - | 4.50 | 37,916 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,419 |
| The Mars Quiz | 0 | - | 4.55 | 18,603 |
| The Saturn Quiz | 0 | - | 4.54 | 11,529 |
| 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 |
| 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 |
| The Venus Quiz | 0 | - | 4.21 | 6,901 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,132 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,185 |
| 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 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,406 |
| 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 |
| Italian Cities - Sudden Death | 0 | - | 4.96 | 69,694 |
| U.S. National Parks – Sudden Death | 0 | - | 4.62 | 43,276 |
| Republican U.S. Presidents - Sudden Death | 0 | - | 4.90 | 46,049 |
| 1990s Movies - Sudden Death | 0 | - | 4.73 | 29,921 |
| Countries With High Population Density - Sudden Death | 0 | - | 4.92 | 36,817 |
| Canadian Cities - Sudden Death | 0 | - | 4.96 | 46,663 |
| Countries With Low Population Density - Sudden Death | 0 | - | 4.67 | 21,768 |
| Cities of California - Sudden Death | 0 | - | 4.58 | 35,786 |
| 1980s Movies - Sudden Death | 0 | - | 4.60 | 23,652 |
| Formula 1 Drivers - Sudden Death | 0 | - | 4.41 | 21,914 |
| Super Bowl Winners - Sudden Death | 0 | - | 4.53 | 37,889 |
| Every European Flag - Sudden Death | 0 | - | 4.96 | 378,335 |
| Every American Flag - Sudden Death | 0 | - | 4.88 | 67,696 |
| Every African Flag - Sudden Death | 0 | - | 4.98 | 71,964 |
| Smallest 25 U.S. States - Sudden Death | 0 | - | 4.56 | 145,359 |
| NATO Members - Sudden Death | 0 | - | 4.94 | 147,391 |
| Modern Rappers - Sudden Death | 0 | - | 4.32 | 121,108 |
| U.S. Presidents - Sudden Death | 0 | - | 4.78 | 171,603 |
| Summer Olympics Host Cities - Sudden Death | 0 | - | 4.97 | 42,142 |
| Star Wars Picture Chain - Sudden Death | 0 | - | 4.51 | 97,761 |
| Michael Jackson Songs - Sudden Death | 0 | - | 4.65 | 90,101 |
| 13 American Colonies - Sudden Death | 0 | - | 4.89 | 42,466 |
| Red, White, & Blue Flags - Sudden Death | 0 | - | 4.73 | 183,856 |
| British Bands - Sudden Death | 0 | - | 4.60 | 93,819 |
| European Capitals - Sudden Death | 0 | - | 4.93 | 210,025 |
| Queen Songs - Sudden Death | 0 | - | 4.81 | 53,592 |
| ABBA Songs - Sudden Death | 0 | - | 4.65 | 43,896 |
| "C" Countries - World Map Sudden Death | 0 | - | 4.84 | 189,767 |
| Megacities - World Map Sudden Death | 0 | - | 4.92 | 146,201 |
| Martin Scorsese Movies - Sudden Death | 0 | - | 4.56 | 14,484 |
| Blue States - Sudden Death | 0 | - | 4.97 | 86,658 |
| U.S. State Capitals - Sudden Death | 0 | - | 4.78 | 128,501 |
| China's Neighbours - Sudden Death | 0 | - | 4.70 | 143,368 |
| Shakespeare Plays - Sudden Death | 0 | - | 4.85 | 58,598 |
| NBA MVPs - Sudden Death | 0 | - | 4.52 | 119,371 |
| American Singers – Sudden Death | 0 | - | 4.50 | 79,693 |
| NATO Phonetic Alphabet - Sudden Death | 0 | - | 4.92 | 132,090 |
| American Bands - Sudden Death | 0 | - | 4.50 | 70,118 |
| Eliminate European Cities - Sudden Death | 0 | - | 4.95 | 94,157 |
| Musical Movies - Sudden Death | 0 | - | 3.95 | 69,051 |
| Two Color Flags - Sudden Death | 0 | - | 4.96 | 96,710 |
| Indo-European Languages - Sudden Death | 0 | - | 4.68 | 32,948 |
| Countries With Same-Sex Marriage – Sudden Death | 0 | - | 4.25 | 70,062 |
| Muslim Countries - Sudden Death | 0 | - | 4.93 | 146,977 |
| K-Pop Groups - Sudden Death | 0 | - | 4.21 | 43,552 |
| North American Pro Sports Teams – Sudden Death | 0 | - | 4.55 | 53,230 |
