| Elements - Sudden Death | 0 | - | 4.91 | 129,571 |
| International Scientific Units | 0 | - | 4.95 | 156,462 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,648 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,236,797 |
| Elements by Symbol | 0 | - | 4.92 | 196,770 |
| Speed Symbol by Element | 0 | - | 4.91 | 104,442 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,897 |
| Noble Gases | 0 | - | 4.89 | 77,985 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,449 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,881 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,464 |
| Name the Virus | 0 | - | 4.87 | 76,644 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,375 |
| Famous Scientists | 0 | - | 4.57 | 42,590 |
| Memory Test - Sudden Death | 0 | - | 4.91 | 337,787 |
| Scientific Names | 0 | - | 4.32 | 78,371 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,881 |
| Elemental Words | 0 | - | 4.96 | 52,215 |
| Metals of Antiquity | 0 | - | 4.94 | 93,282 |
| Famous Effects | 0 | - | 4.62 | 12,396 |
| Olympic Host Countries - Sudden Death | 0 | - | 4.91 | 118,694 |
| True or False - Sudden Death | 0 | - | 4.93 | 151,648 |
| Countries that Use the Euro - Sudden Death | 0 | - | 4.93 | 248,358 |
| Be Happy - Sudden Death | 0 | - | 4.91 | 117,542 |
| Landlocked Countries - Sudden Death | 0 | - | 4.97 | 162,647 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,419 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,970 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 188,255 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,428 |
| Body Part Cliches | 0 | - | 4.43 | 123,249 |
| Bones of the Human Body | 0 | - | 4.52 | 42,050 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,036 |
| American Singers – Sudden Death | 0 | - | 4.51 | 80,392 |
| American Bands - Sudden Death | 0 | - | 4.51 | 70,639 |
| Indo-European Languages - Sudden Death | 0 | - | 4.69 | 33,995 |
| North American Pro Sports Teams – Sudden Death | 0 | - | 4.55 | 53,619 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,105 |
| Random Symbol to Element | 0 | - | 4.88 | 92,846 |
| Astronomy Quiz | 0 | - | 4.90 | 82,364 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,840 |
| Solar System Trivia | 0 | - | 4.93 | 46,468 |
| Click the Planet | 0 | - | 4.96 | 91,034 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,510 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.52 | 12,128 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,505 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,554 |
| Environmental Issues | 0 | - | 4.54 | 26,809 |
| Martin Scorsese Movies - Sudden Death | 0 | - | 4.56 | 15,512 |
| Name a Valid Answer - Science | 0 | - | 4.79 | 40,744 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,242 |
| Science General Knowledge #1 | 0 | - | 4.54 | 165,497 |
| Science General Knowledge #2 | 0 | - | 4.48 | 118,437 |
| Science General Knowledge #3 | 0 | - | 4.56 | 107,431 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,535 |
| Word Chain - Science | 0 | - | 4.59 | 54,794 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,631 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,345 |
| Click the Chemical Element | 0 | - | 4.96 | 80,074 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,095,592 |
| Arrow Puzzle #1 - Sudden Death | 0 | - | 4.80 | 107,136 |
| Prime Numbers - Sudden Death | 0 | - | 4.62 | 97,967 |
| Be Sad - Sudden Death | 0 | - | 4.74 | 76,215 |
| Equatorial Countries - Sudden Death | 0 | - | 4.75 | 58,916 |
| Ivy League Universities - Sudden Death | 0 | - | 4.74 | 51,302 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,857 |
| The Sun Quiz | 0 | - | 4.93 | 34,471 |
| First Names of Scientists | 0 | - | 4.50 | 56,732 |
| Groups of Two - Science | 0 | - | 4.26 | 48,275 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,711 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,888 |
| Science Decoder | 0 | - | 4.52 | 28,735 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,276 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,233 |
| Science True or False | 0 | - | 4.35 | 40,234 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,966 |
| Elements by Picture | 0 | - | 4.27 | 69,825 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 102,720 |
| Name a Valid Element | 0 | - | 4.64 | 69,920 |
| Medical Acronyms | 0 | - | 4.43 | 96,717 |
| Medical Vocabulary | 0 | - | 4.54 | 59,008 |
| Real People - Sudden Death #1 | 0 | - | 4.14 | 105,856 |
| Birthstones by Month | 0 | - | 4.41 | 80,603 |
| Citrus Fruits | 0 | - | 3.63 | 42,038 |
| "Ologies" Quiz | 0 | - | 4.34 | 96,607 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,358 |
| Name the Metal Alloy | 0 | - | 4.70 | 13,615 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,792 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,173 |
| Element... or Pokémon? | 0 | - | 4.98 | 131,335 |
| Brightest Natural Objects in the Sky | 0 | - | 4.45 | 28,171 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,627 |
| Planets - Multiple Choice | 0 | - | 4.41 | 53,461 |
| Body Part Words | 0 | - | 4.43 | 145,854 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,782 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,200 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,504 |
| Human Body A-Z | 0 | - | 4.51 | 129,021 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,052 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,059 |
| Medical Specialties | 0 | - | 4.32 | 91,672 |
| The Diseases They Had | 0 | - | 4.15 | 13,984 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,547 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,749 |
| The Pluto Quiz | 0 | - | 4.61 | 9,822 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,411 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,605 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,568 |
| Astronomy Decoder | 0 | - | 4.50 | 37,990 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,438 |
| The Mars Quiz | 0 | - | 4.55 | 18,633 |
| The Saturn Quiz | 0 | - | 4.54 | 11,540 |
| Dumb it Down Doc | 0 | - | 4.13 | 64,922 |
| Signs of the Zodiac Quiz | 0 | - | 4.45 | 225,193 |
| Name the Constellations | 0 | - | 4.58 | 44,905 |
| Astronomy True or False | 0 | - | 4.39 | 36,406 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,522 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,617 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,269 |
| The Venus Quiz | 0 | - | 4.21 | 6,910 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,225 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,316 |
| Elements Named for Countries | 0 | - | 4.52 | 24,620 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,694 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,345 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,440 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,414 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,192 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.09 | 26,054 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,664 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,140 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,535 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,577 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,933 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.24 | 25,784 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,394 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,565 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,386 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,588 |
| Least-Forested Countries | 0 | - | 4.53 | 65,126 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,355 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,404 |
| Most Forested European Countries | 0 | - | 4.80 | 75,224 |
| Least Forested European Countries | 0 | - | 4.25 | 53,951 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,637 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,776 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,468 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,977 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,581 |
| Countries with Glaciers | 0 | - | 4.97 | 105,010 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,125 |
| Italian Cities - Sudden Death | 0 | - | 4.96 | 70,999 |
| U.S. National Parks – Sudden Death | 0 | - | 4.62 | 43,728 |
| Republican U.S. Presidents - Sudden Death | 0 | - | 4.91 | 47,152 |
| 1990s Movies - Sudden Death | 0 | - | 4.73 | 30,236 |
| Countries With High Population Density - Sudden Death | 0 | - | 4.92 | 37,232 |
| Canadian Cities - Sudden Death | 0 | - | 4.96 | 47,751 |
| Countries With Low Population Density - Sudden Death | 0 | - | 4.67 | 22,022 |
| Cities of California - Sudden Death | 0 | - | 4.58 | 36,273 |
| 1980s Movies - Sudden Death | 0 | - | 4.60 | 23,931 |
| Formula 1 Drivers - Sudden Death | 0 | - | 4.43 | 22,477 |
| Super Bowl Winners - Sudden Death | 0 | - | 4.53 | 38,346 |
| Capital Cities - Sudden Death | 0 | - | 4.99 | 274,774 |
| Every European Flag - Sudden Death | 0 | - | 4.96 | 382,922 |
| Every American Flag - Sudden Death | 0 | - | 4.89 | 68,451 |
| Every African Flag - Sudden Death | 0 | - | 4.96 | 73,549 |
| Spielberg Movie Images - Sudden Death | 0 | - | 4.47 | 53,872 |
| Smallest 25 U.S. States - Sudden Death | 0 | - | 4.56 | 145,972 |
| NATO Members - Sudden Death | 0 | - | 4.94 | 149,175 |
| Modern Rappers - Sudden Death | 0 | - | 4.32 | 121,833 |
| U.S. Presidents - Sudden Death | 0 | - | 4.80 | 173,510 |
| Summer Olympics Host Cities - Sudden Death | 0 | - | 4.96 | 42,923 |
| Star Wars Picture Chain - Sudden Death | 0 | - | 4.52 | 100,132 |
| Michael Jackson Songs - Sudden Death | 0 | - | 4.65 | 91,798 |
| 13 American Colonies - Sudden Death | 0 | - | 4.89 | 43,532 |
| Red, White, & Blue Flags - Sudden Death | 0 | - | 4.73 | 185,678 |
| Countries With 100 Million People - Sudden Death | 0 | - | 4.96 | 163,420 |
| British Bands - Sudden Death | 0 | - | 4.60 | 94,424 |
| European Capitals - Sudden Death | 0 | - | 4.94 | 212,370 |
| Queen Songs - Sudden Death | 0 | - | 4.81 | 54,108 |
| ABBA Songs - Sudden Death | 0 | - | 4.65 | 44,331 |
| "C" Countries - World Map Sudden Death | 0 | - | 4.84 | 192,846 |
| Megacities - World Map Sudden Death | 0 | - | 4.92 | 148,881 |
| Birds - Sudden Death | 0 | - | 4.54 | 67,509 |
| Blue States - Sudden Death | 0 | - | 4.97 | 87,376 |
| U.S. State Capitals - Sudden Death | 0 | - | 4.80 | 129,682 |
| China's Neighbours - Sudden Death | 0 | - | 4.70 | 145,031 |
| Shakespeare Plays - Sudden Death | 0 | - | 4.86 | 59,076 |
| NBA MVPs - Sudden Death | 0 | - | 4.52 | 120,967 |
| NATO Phonetic Alphabet - Sudden Death | 0 | - | 4.93 | 133,920 |
| Tom Hanks Movies - Sudden Death | 0 | - | 4.57 | 63,234 |
| Eliminate European Cities - Sudden Death | 0 | - | 4.95 | 95,330 |
| Most Populated Countries - Sudden Death | 0 | - | 4.67 | 72,666 |
| Countries With a Population Under 1 Million - Sudden Death | 0 | - | 4.93 | 84,643 |
| Musical Movies - Sudden Death | 0 | - | 3.95 | 69,451 |
| Two Color Flags - Sudden Death | 0 | - | 4.96 | 98,434 |
| NBA Champion Players - Sudden Death | 0 | - | 4.56 | 127,614 |
| Christmas Songs - Sudden Death | 0 | - | 4.23 | 49,869 |
| Countries With Same-Sex Marriage – Sudden Death | 0 | - | 4.26 | 70,534 |
| Muslim Countries - Sudden Death | 0 | - | 4.93 | 149,253 |
| FIFA World Cup Host Countries - Sudden Death | 0 | - | 4.45 | 57,896 |
