1. Aeroplane   Fahrenheit   Benjamin Franklin   Orville and Wilbur Wright   Charles Macintosh   Hint Half-n-half Clue   2. Transformer   Charles Macintosh   Thomas Alva Edison   Michael Faraday   Alfred B. Nobel   Half-n-half Clue   3. Waterproof Rubber   Rudolf Diesel   Charles Macintosh   Charles Goodyear   John Boyd Dunlop   Half-n-half Clue   4. Bifocal Lens   Rudolf Diesel   Benjamin Franklin   Thomas Alva Edison   Michael Faraday   Half-n-half Clue   5. Vulcanised Rubber   Elisha G. Otis   John Boyd Dunlop   Charles Goodyear   Benjamin Franklin   Half-n-half Clue   6. Television (mechanical)   Benjamin Franklin   Thomas Alva Edison   John Logie Baird   Michael Faraday   Half-n-half Clue   7. Lightning Conductor   Benjamin Franklin   Samuel Morse   King C. Gillette   Thomas Alva Edison   Half-n-half Clue