| Elements - Sudden Death | 0 | - | 4.91 | 128,703 |
| International Scientific Units | 0 | - | 4.95 | 156,121 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,503 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,232,683 |
| Elements by Symbol | 0 | - | 4.92 | 196,451 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,221 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,762 |
| Noble Gases | 0 | - | 4.89 | 77,846 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,338 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,655 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,284 |
| Name the Virus | 0 | - | 4.86 | 76,562 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,217 |
| Famous Scientists | 0 | - | 4.57 | 42,547 |
| Memory Test - Sudden Death | 0 | - | 4.91 | 335,785 |
| Scientific Names | 0 | - | 4.32 | 78,313 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,804 |
| Elemental Words | 0 | - | 4.96 | 52,161 |
| Metals of Antiquity | 0 | - | 4.94 | 93,186 |
| Famous Effects | 0 | - | 4.62 | 12,329 |
| Olympic Host Countries - Sudden Death | 0 | - | 4.91 | 118,232 |
| True or False - Sudden Death | 0 | - | 4.93 | 150,775 |
| Countries that Use the Euro - Sudden Death | 0 | - | 4.93 | 247,157 |
| Be Happy - Sudden Death | 0 | - | 4.91 | 116,736 |
| Landlocked Countries - Sudden Death | 0 | - | 4.97 | 161,612 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,291 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,960 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,011 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,373 |
| Body Part Cliches | 0 | - | 4.43 | 123,210 |
| Bones of the Human Body | 0 | - | 4.52 | 41,745 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,902 |
| American Singers – Sudden Death | 0 | - | 4.51 | 79,973 |
| American Bands - Sudden Death | 0 | - | 4.50 | 70,322 |
| Indo-European Languages - Sudden Death | 0 | - | 4.69 | 33,472 |
| North American Pro Sports Teams – Sudden Death | 0 | - | 4.55 | 53,365 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,095 |
| Random Symbol to Element | 0 | - | 4.88 | 92,617 |
| Astronomy Quiz | 0 | - | 4.90 | 82,199 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,554 |
| Solar System Trivia | 0 | - | 4.93 | 46,375 |
| Click the Planet | 0 | - | 4.96 | 90,835 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,488 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 12,101 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,433 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,499 |
| Environmental Issues | 0 | - | 4.54 | 26,783 |
| Martin Scorsese Movies - Sudden Death | 0 | - | 4.56 | 15,086 |
| Name a Valid Answer - Science | 0 | - | 4.79 | 40,458 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,221 |
| Science General Knowledge #1 | 0 | - | 4.54 | 164,243 |
| Science General Knowledge #2 | 0 | - | 4.48 | 117,302 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,777 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,439 |
| Word Chain - Science | 0 | - | 4.59 | 54,651 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,579 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,227 |
| Click the Chemical Element | 0 | - | 4.96 | 79,891 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,094,363 |
| Arrow Puzzle #1 - Sudden Death | 0 | - | 4.80 | 106,533 |
| Prime Numbers - Sudden Death | 0 | - | 4.62 | 97,628 |
| Be Sad - Sudden Death | 0 | - | 4.74 | 76,008 |
| Equatorial Countries - Sudden Death | 0 | - | 4.75 | 58,729 |
| Ivy League Universities - Sudden Death | 0 | - | 4.74 | 51,090 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,811 |
| The Sun Quiz | 0 | - | 4.93 | 34,385 |
| First Names of Scientists | 0 | - | 4.50 | 56,672 |
| Groups of Two - Science | 0 | - | 4.26 | 48,226 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,593 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,804 |
| Science Decoder | 0 | - | 4.52 | 28,696 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,240 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,203 |
| Science True or False | 0 | - | 4.35 | 40,162 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,921 |
| Elements by Picture | 0 | - | 4.27 | 69,766 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,574 |
| Name a Valid Element | 0 | - | 4.64 | 69,815 |
| Medical Acronyms | 0 | - | 4.43 | 96,611 |
| Medical Vocabulary | 0 | - | 4.54 | 58,915 |
| Real People - Sudden Death #1 | 0 | - | 4.13 | 105,468 |
| Birthstones by Month | 0 | - | 4.41 | 80,576 |
| Citrus Fruits | 0 | - | 3.63 | 42,007 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,538 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,346 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,538 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,766 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,155 |
| Element... or Pokémon? | 0 | - | 4.98 | 131,072 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 28,082 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,521 |
| Planets - Multiple Choice | 0 | - | 4.41 | 53,390 |
| Body Part Words | 0 | - | 4.43 | 145,769 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,749 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,103 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,456 |
| Human Body A-Z | 0 | - | 4.51 | 128,927 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,973 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 118,931 |
| Medical Specialties | 0 | - | 4.32 | 91,226 |
| The Diseases They Had | 0 | - | 4.15 | 13,966 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 57,390 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,725 |
| The Pluto Quiz | 0 | - | 4.61 | 9,811 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,355 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,543 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,481 |
| Astronomy Decoder | 0 | - | 4.50 | 37,952 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,425 |
| The Mars Quiz | 0 | - | 4.55 | 18,620 |
| The Saturn Quiz | 0 | - | 4.54 | 11,533 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,873 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 224,834 |
| Name the Constellations | 0 | - | 4.58 | 44,865 |
| Astronomy True or False | 0 | - | 4.39 | 36,370 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,362 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,600 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,228 |
| The Venus Quiz | 0 | - | 4.21 | 6,904 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,170 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,239 |
| Elements Named for Countries | 0 | - | 4.52 | 24,575 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,682 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,229 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,416 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,397 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,109 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.12 | 25,644 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,624 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,136 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,445 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,551 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,892 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,750 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,320 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,504 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,931 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,551 |
| Least-Forested Countries | 0 | - | 4.53 | 65,066 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,313 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,360 |
| Most Forested European Countries | 0 | - | 4.80 | 75,155 |
| Least Forested European Countries | 0 | - | 4.25 | 53,913 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,585 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,746 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,430 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,906 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,540 |
| Countries with Glaciers | 0 | - | 4.97 | 104,906 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,112 |
| Italian Cities - Sudden Death | 0 | - | 4.96 | 70,230 |
| U.S. National Parks – Sudden Death | 0 | - | 4.62 | 43,454 |
| Republican U.S. Presidents - Sudden Death | 0 | - | 4.91 | 46,552 |
| 1990s Movies - Sudden Death | 0 | - | 4.73 | 30,052 |
| Countries With High Population Density - Sudden Death | 0 | - | 4.92 | 36,993 |
| Canadian Cities - Sudden Death | 0 | - | 4.96 | 47,134 |
| Countries With Low Population Density - Sudden Death | 0 | - | 4.67 | 21,878 |
| Cities of California - Sudden Death | 0 | - | 4.58 | 35,987 |
| 1980s Movies - Sudden Death | 0 | - | 4.60 | 23,772 |
| Formula 1 Drivers - Sudden Death | 0 | - | 4.43 | 22,195 |
| Super Bowl Winners - Sudden Death | 0 | - | 4.53 | 38,096 |
| Capital Cities - Sudden Death | 0 | - | 4.99 | 273,195 |
| Every European Flag - Sudden Death | 0 | - | 4.96 | 380,375 |
| Every American Flag - Sudden Death | 0 | - | 4.89 | 67,992 |
| Every African Flag - Sudden Death | 0 | - | 4.98 | 72,829 |
| Spielberg Movie Images - Sudden Death | 0 | - | 4.47 | 53,710 |
| Smallest 25 U.S. States - Sudden Death | 0 | - | 4.56 | 145,596 |
| NATO Members - Sudden Death | 0 | - | 4.94 | 148,138 |
| Modern Rappers - Sudden Death | 0 | - | 4.32 | 121,384 |
| U.S. Presidents - Sudden Death | 0 | - | 4.78 | 172,365 |
| Summer Olympics Host Cities - Sudden Death | 0 | - | 4.96 | 42,446 |
| Star Wars Picture Chain - Sudden Death | 0 | - | 4.52 | 98,993 |
| Michael Jackson Songs - Sudden Death | 0 | - | 4.65 | 90,775 |
| 13 American Colonies - Sudden Death | 0 | - | 4.89 | 42,685 |
| Red, White, & Blue Flags - Sudden Death | 0 | - | 4.73 | 184,638 |
| Countries With 100 Million People - Sudden Death | 0 | - | 4.96 | 162,370 |
| British Bands - Sudden Death | 0 | - | 4.60 | 94,100 |
| European Capitals - Sudden Death | 0 | - | 4.94 | 211,133 |
| Queen Songs - Sudden Death | 0 | - | 4.81 | 53,845 |
| ABBA Songs - Sudden Death | 0 | - | 4.65 | 44,083 |
| "C" Countries - World Map Sudden Death | 0 | - | 4.84 | 191,139 |
| Megacities - World Map Sudden Death | 0 | - | 4.92 | 147,337 |
| Birds - Sudden Death | 0 | - | 4.53 | 67,300 |
| Blue States - Sudden Death | 0 | - | 4.97 | 87,008 |
| U.S. State Capitals - Sudden Death | 0 | - | 4.80 | 129,041 |
| China's Neighbours - Sudden Death | 0 | - | 4.70 | 144,065 |
| Shakespeare Plays - Sudden Death | 0 | - | 4.85 | 58,754 |
| NBA MVPs - Sudden Death | 0 | - | 4.52 | 119,989 |
| NATO Phonetic Alphabet - Sudden Death | 0 | - | 4.92 | 133,008 |
| Tom Hanks Movies - Sudden Death | 0 | - | 4.59 | 63,047 |
| Eliminate European Cities - Sudden Death | 0 | - | 4.95 | 94,747 |
| Most Populated Countries - Sudden Death | 0 | - | 4.66 | 71,468 |
| Countries With a Population Under 1 Million - Sudden Death | 0 | - | 4.93 | 84,239 |
| Musical Movies - Sudden Death | 0 | - | 3.95 | 69,213 |
| Two Color Flags - Sudden Death | 0 | - | 4.96 | 97,434 |
| NBA Champion Players - Sudden Death | 0 | - | 4.56 | 126,529 |
| Christmas Songs - Sudden Death | 0 | - | 4.23 | 49,621 |
| Countries With Same-Sex Marriage – Sudden Death | 0 | - | 4.26 | 70,259 |
| Muslim Countries - Sudden Death | 0 | - | 4.93 | 148,025 |
| FIFA World Cup Host Countries - Sudden Death | 0 | - | 4.44 | 56,600 |
