1. Elevator   Elisha G. Otis   Michael Faraday   Orville and Wilbur Wright   Charles Goodyear   Hint Half-n-half Clue   2. Electric Lamp   Rudolf Diesel   Benjamin Franklin   King C. Gillette   Thomas Alva Edison   Half-n-half Clue   3. Gramophone   Thomas Alva Edison   Elisha G. Otis   John Boyd Dunlop   Michael Faraday   Half-n-half Clue   4. Telephone   Sir Alexander Graham Bell   Michael Faraday   Charles Macintosh   James Watt   Half-n-half Clue   5. Bifocal Lens   Alfred B. Nobel   Michael Faraday   James Watt   Benjamin Franklin   Half-n-half Clue   6. Lightning Conductor   Benjamin Franklin   Orville and Wilbur Wright   Charles Macintosh   Charles Goodyear   Half-n-half Clue   7. Aeroplane   Orville and Wilbur Wright   Charles Macintosh   Benjamin Franklin   Elisha G. Otis   Half-n-half Clue