| Num | | | Title | Category | About | Author | Times Taken | Average Score(%) |
| 2 |  | | Not So Famous Inventors | Technology | | dartjock | 46 | 50.7 |
| 3 |  | | Mackinac Bridge | Technology, North American Geography | | bill | 151 | 68.2 |
| 4 |  | | Lost Submarines: Post WWII | History, Deep Sea Exploration, Technology | | patrickryan | 25 | 42 |
| 5 |  | | Power Generation | Science & Nature, Technology, Culture | | patrickryan | 42 | 32.1 |
| 6 |  | | Nuclear Disasters | Technology | | patrickryan | 88 | 40 |
| 7 |  | | Pac-Man: The Original | Technology | | FRANKL1965 | 202 | 60.6 |
| 8 |  | | MySpace: International Community | Business, Technology | | BubblyJolie | 38 | 39.7 |
| 9 |  | | Masters of the Internet | Technology | | dave | 181 | 41 |
| 10 |  | | Alexander Graham Bell: Inventor, Scientist & Teacher | Science & Nature, Technology | Alexander G Bell | bill | 149 | 47.4 |
| 11 |  | | Tim Berners-Lee: Amazing Computer Scientist! | Technology | Tim Berners-Lee | bill | 564 | 50.7 |
| 12 |  | | Thomas Edison: American Inventor | Business, Technology, American Culture | Thomas A Edison | bill | 486 | 43.1 |
| 13 |  | | Steve Jobs: American Inventor & CEO | Business, Technology | Steve Jobs | FRANKL1965 | 90 | 46.8 |
| 14 |  | | Charles Lindbergh | American History, Technology, Amazing "Firsts" in History! | Charles Lindbergh | dave | 297 | 53.1 |
| 15 |  | | Samuel Morse - Inventor of the Telegraph | History, American History, Technology, Scientists | Samuel F Morse | grant228 | 58 | 44.8 |
| 16 |  | | Nicola Tesla: Inventor and Genius | Technology, Scientists | Nicola Tesla | patrickryan | 38 | 53.4 |
| 17 |  | | James Watt - Engineer! | Technology, Scientists | James Watt | patrickryan | 148 | 38.3 |
| 18 |  | | Edward Teller | American History, Technology, Scientists | Edward Teller | patrickryan | 25 | 54.4 |
| 19 |  | | Julius Robert Oppenheimer - Manhattan Project Scientist | World War II, Science & Nature, Technology, Scientists | J. Robert Oppenheimer | patrickryan | 114 | 51.5 |
| 20 |  | | Samuel Colt: Weapons Innovator | Business, Technology, American History | Samuel Colt | patrickryan | 67 | 34.2 |
| 21 |  | | Oliver Winchester - American Businessman and Politician | American History, Business, Technology | Oliver Winchester | patrickryan | 13 | 60 |
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| Grand Averages for these 20 Quizzes | | | 47.6 |
tells you you've taken it