| Elements - Sudden Death | 0 | - | 4.93 | 134,561 |
| International Scientific Units | 0 | - | 4.95 | 157,755 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,156 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,255,117 |
| Elements by Symbol | 0 | - | 4.92 | 198,209 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,302 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,590 |
| Noble Gases | 0 | - | 4.89 | 78,653 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,918 |
| Periodic Table Symbols | 0 | - | 4.97 | 75,246 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,172 |
| Name the Virus | 0 | - | 4.87 | 76,999 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,991 |
| Famous Scientists | 0 | - | 4.57 | 42,789 |
| Memory Test - Sudden Death | 0 | - | 4.92 | 348,438 |
| Scientific Names | 0 | - | 4.32 | 78,658 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,191 |
| Elemental Words | 0 | - | 4.97 | 52,480 |
| Metals of Antiquity | 0 | - | 4.95 | 93,771 |
| Famous Effects | 0 | - | 4.62 | 12,742 |
| Olympic Host Countries - Sudden Death | 0 | - | 4.91 | 120,593 |
| True or False - Sudden Death | 0 | - | 4.91 | 156,143 |
| Countries that Use the Euro - Sudden Death | 0 | - | 4.93 | 253,907 |
| Be Happy - Sudden Death | 0 | - | 4.90 | 120,065 |
| Landlocked Countries - Sudden Death | 0 | - | 4.97 | 167,951 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,869 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,414 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,070 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,501 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,730 |
| Body Part Cliches | 0 | - | 4.44 | 123,617 |
| Bones of the Human Body | 0 | - | 4.51 | 43,353 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,749 |
| American Singers – Sudden Death | 0 | - | 4.51 | 82,331 |
| American Bands - Sudden Death | 0 | - | 4.51 | 71,962 |
| Indo-European Languages - Sudden Death | 0 | - | 4.75 | 36,503 |
| North American Pro Sports Teams – Sudden Death | 0 | - | 4.55 | 54,459 |
| Click the Planet | 0 | - | 4.96 | 91,982 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,145 |
| Random Symbol to Element | 0 | - | 4.88 | 93,610 |
| Astronomy Quiz | 0 | - | 4.90 | 83,048 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,092 |
| Solar System Trivia | 0 | - | 4.93 | 46,988 |
| A Quiz About Diamonds | 0 | - | 4.60 | 11,632 |
| Periodic Table Elements by Clue #2 | 0 | - | 4.46 | 12,281 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,715 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,780 |
| Environmental Issues | 0 | - | 4.54 | 26,887 |
| Martin Scorsese Movies - Sudden Death | 0 | - | 4.58 | 16,840 |
| Name a Valid Answer - Science | 0 | - | 4.79 | 41,281 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,406 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,057 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,510 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,414 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,877 |
| Word Chain - Science | 0 | - | 4.59 | 55,076 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,885 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,315 |
| Click the Chemical Element | 0 | - | 4.96 | 81,072 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,929 |
| Arrow Puzzle #1 - Sudden Death | 0 | - | 4.77 | 109,772 |
| Prime Numbers - Sudden Death | 0 | - | 4.62 | 99,456 |
| Be Sad - Sudden Death | 0 | - | 4.74 | 77,197 |
| Real People - Sudden Death #3 | 0 | - | 4.53 | 79,876 |
| Equatorial Countries - Sudden Death | 0 | - | 4.78 | 59,741 |
| Ivy League Universities - Sudden Death | 0 | - | 4.74 | 52,405 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,114 |
| The Sun Quiz | 0 | - | 4.93 | 34,957 |
| First Names of Scientists | 0 | - | 4.51 | 57,129 |
| Groups of Two - Science | 0 | - | 4.26 | 48,424 |
| Science Vocabulary #1 | 0 | - | 4.34 | 72,095 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,156 |
| Science Decoder | 0 | - | 4.52 | 28,832 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,464 |
| Science True or False | 0 | - | 4.35 | 40,447 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,160 |
| Elements by Picture | 0 | - | 4.27 | 70,203 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,293 |
| Name a Valid Element | 0 | - | 4.67 | 70,303 |
| Medical Acronyms | 0 | - | 4.43 | 97,130 |
| Medical Vocabulary | 0 | - | 4.54 | 59,379 |
| Real People - Sudden Death #1 | 0 | - | 4.14 | 107,404 |
| Birthstones by Month | 0 | - | 4.43 | 86,878 |
| Citrus Fruits | 0 | - | 3.66 | 42,132 |
| "Ologies" Quiz | 0 | - | 4.34 | 97,445 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,429 |
| Name the Metal Alloy | 0 | - | 4.73 | 13,957 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,932 |
| Most Guessed Elements on JetPunk | 0 | - | 4.56 | 48,293 |
| Element... or Pokémon? | 0 | - | 4.98 | 132,605 |
| Brightest Natural Objects in the Sky | 0 | - | 4.46 | 28,538 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,211 |
| Body Part Words | 0 | - | 4.43 | 146,278 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,925 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,903 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,828 |
| Human Body A-Z | 0 | - | 4.51 | 129,526 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,451 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,732 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,781 |
| Medical Specialties | 0 | - | 4.32 | 91,986 |
| The Diseases They Had | 0 | - | 4.15 | 14,049 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,128 |
| 16 Questions that Prove that Physics Makes No Sense | 0 | - | 4.18 | 20,915 |
| The Pluto Quiz | 0 | - | 4.61 | 9,902 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,662 |
| Periodic Table Elements Mentioned in the Bible | 0 | - | 4.77 | 70,894 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,976 |
| Astronomy Decoder | 0 | - | 4.48 | 38,165 |
| The Jupiter Quiz | 0 | - | 4.64 | 16,504 |
| The Mars Quiz | 0 | - | 4.55 | 18,701 |
| The Saturn Quiz | 0 | - | 4.54 | 11,584 |
| Planets - Multiple Choice | 0 | - | 4.39 | 53,761 |
| Dumb it Down Doc | 0 | - | 4.13 | 65,105 |
| Signs of the Zodiac Quiz | 0 | - | 4.46 | 227,109 |
| Name the Constellations | 0 | - | 4.58 | 45,215 |
| Astronomy True or False | 0 | - | 4.39 | 36,570 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,230 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,508 |
| The Venus Quiz | 0 | - | 4.21 | 6,942 |
| U.S. States with Glaciers | 0 | - | 4.61 | 25,457 |
| Largest Countries Without Glaciers | 0 | - | 4.92 | 35,588 |
| Elements Named for Countries | 0 | - | 4.52 | 24,901 |
| Countries with Glaciers | 0 | - | 4.97 | 105,684 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,181 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,753 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,803 |
| The Voyage of Darwin - Animated Map Quiz | 0 | - | 4.99 | 14,572 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,513 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,480 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.10 | 26,767 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,804 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,183 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,859 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,703 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 60,116 |
| Top 10 U.S. States by Solar Power | 0 | - | 4.25 | 25,892 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,755 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,825 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,834 |
| Top 10 Most-Forested U.S. States | 0 | - | 4.37 | 45,730 |
| Least-Forested Countries | 0 | - | 4.53 | 65,355 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,575 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,642 |
| Most Forested European Countries | 0 | - | 4.80 | 75,558 |
| Least Forested European Countries | 0 | - | 4.25 | 54,133 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,865 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,911 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,630 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,267 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,743 |
| Italian Cities - Sudden Death | 0 | - | 4.96 | 74,439 |
| U.S. National Parks – Sudden Death | 0 | - | 4.62 | 44,899 |
| Republican U.S. Presidents - Sudden Death | 0 | - | 4.91 | 49,888 |
| 1990s Movies - Sudden Death | 0 | - | 4.73 | 31,088 |
| Countries With High Population Density - Sudden Death | 0 | - | 4.92 | 38,228 |
| Canadian Cities - Sudden Death | 0 | - | 4.96 | 50,647 |
| Countries With Low Population Density - Sudden Death | 0 | - | 4.67 | 22,641 |
| Cities of California - Sudden Death | 0 | - | 4.58 | 37,397 |
| 1980s Movies - Sudden Death | 0 | - | 4.61 | 24,624 |
| Cities In Texas - Sudden Death | 0 | - | 4.58 | 23,739 |
| Formula 1 Drivers - Sudden Death | 0 | - | 4.44 | 23,908 |
| Super Bowl Winners - Sudden Death | 0 | - | 4.53 | 39,302 |
| Capital Cities - Sudden Death | 0 | - | 4.99 | 282,263 |
| Every European Flag - Sudden Death | 0 | - | 4.96 | 394,273 |
| Every American Flag - Sudden Death | 0 | - | 4.89 | 70,561 |
| Every African Flag - Sudden Death | 0 | - | 4.96 | 77,576 |
| Spielberg Movie Images - Sudden Death | 0 | - | 4.47 | 54,792 |
| Smallest 25 U.S. States - Sudden Death | 0 | - | 4.55 | 147,580 |
| NATO Members - Sudden Death | 0 | - | 4.95 | 153,186 |
| Modern Rappers - Sudden Death | 0 | - | 4.32 | 123,739 |
| U.S. Presidents - Sudden Death | 0 | - | 4.81 | 178,812 |
| Summer Olympics Host Cities - Sudden Death | 0 | - | 4.96 | 44,912 |
| Star Wars Picture Chain - Sudden Death | 0 | - | 4.51 | 104,674 |
| Michael Jackson Songs - Sudden Death | 0 | - | 4.66 | 96,144 |
| 13 American Colonies - Sudden Death | 0 | - | 4.89 | 47,942 |
| Red, White, & Blue Flags - Sudden Death | 0 | - | 4.67 | 190,574 |
| Countries With 100 Million People - Sudden Death | 0 | - | 4.96 | 167,445 |
| British Bands - Sudden Death | 0 | - | 4.60 | 95,943 |
| European Capitals - Sudden Death | 0 | - | 4.94 | 218,365 |
| Queen Songs - Sudden Death | 0 | - | 4.82 | 55,569 |
| ABBA Songs - Sudden Death | 0 | - | 4.65 | 46,311 |
| "C" Countries - World Map Sudden Death | 0 | - | 4.81 | 200,191 |
| Megacities - World Map Sudden Death | 0 | - | 4.92 | 155,671 |
| Real People - Sudden Death #2 (U.S.) | 0 | - | 4.57 | 80,222 |
| French People - Sudden Death | 0 | - | 4.67 | 27,598 |
| Birds - Sudden Death | 0 | - | 4.54 | 68,423 |
| Blue States - Sudden Death | 0 | - | 4.97 | 89,031 |
| U.S. State Capitals - Sudden Death | 0 | - | 4.80 | 131,846 |
| China's Neighbours - Sudden Death | 0 | - | 4.70 | 149,496 |
| Shakespeare Plays - Sudden Death | 0 | - | 4.87 | 60,221 |
| NBA MVPs - Sudden Death | 0 | - | 4.52 | 124,317 |
| NATO Phonetic Alphabet - Sudden Death | 0 | - | 4.93 | 137,729 |
| Tom Hanks Movies - Sudden Death | 0 | - | 4.57 | 64,330 |
| Eliminate European Cities - Sudden Death | 0 | - | 4.96 | 98,370 |
| Most Populated Countries - Sudden Death | 0 | - | 4.67 | 77,674 |
| Countries With a Population Under 1 Million - Sudden Death | 0 | - | 4.93 | 86,232 |
| Musical Movies - Sudden Death | 0 | - | 3.95 | 70,349 |
| Two Color Flags - Sudden Death | 0 | - | 4.96 | 102,887 |
| NBA Champion Players - Sudden Death | 0 | - | 4.56 | 131,526 |
