1. Lightning Conductor   Benjamin Franklin   Fahrenheit   Alfred B. Nobel   Sir Alexander Graham Bell   Hint Half-n-half Clue   2. Pneumatic Tyres   John Boyd Dunlop   Michael Faraday   Sir Alexander Graham Bell   Alfred B. Nobel   Half-n-half Clue   3. Movie Projector   Orville and Wilbur Wright   Sir Alexander Graham Bell   Alfred B. Nobel   Thomas Alva Edison   Half-n-half Clue   4. Aeroplane   Charles Goodyear   Orville and Wilbur Wright   Elisha G. Otis   Samuel Morse   Half-n-half Clue   5. Bifocal Lens   Rudolf Diesel   John Logie Baird   Benjamin Franklin   Sir Alexander Graham Bell   Half-n-half Clue   6. Waterproof Rubber   Alfred B. Nobel   Michael Faraday   Charles Macintosh   Benjamin Franklin   Half-n-half Clue   7. Electric Lamp   Rudolf Diesel   King C. Gillette   Thomas Alva Edison   Charles Macintosh   Half-n-half Clue