1. Electric Generator   Michael Faraday   Thomas Alva Edison   Alfred B. Nobel   Sir Alexander Graham Bell   Hint Half-n-half Clue   2. Waterproof Rubber   Michael Faraday   Elisha G. Otis   Alfred B. Nobel   Charles Macintosh   Half-n-half Clue   3. Lightning Conductor   Benjamin Franklin   Charles Goodyear   Michael Faraday   King C. Gillette   Half-n-half Clue   4. Bifocal Lens   Benjamin Franklin   Charles Goodyear   Samuel Morse   Michael Faraday   Half-n-half Clue   5. Safety Razor   Fahrenheit   Sir Alexander Graham Bell   King C. Gillette   Michael Faraday   Half-n-half Clue   6. Pneumatic Tyres   Elisha G. Otis   John Boyd Dunlop   James Watt   Samuel Morse   Half-n-half Clue   7. Microphone   Sir Alexander Graham Bell   Benjamin Franklin   Fahrenheit   Thomas Alva Edison   Half-n-half Clue