Puzzle the truzzle

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Across
  1. 1. Machines that can perform tasks without human intervention
  2. 5. In engineering, every problem has one
  3. 6. Ability to do work
  4. 8. A mistake made by a robot, it is called?
  5. 10. Inventor known for the AC power system and the Tesla coil
  6. 13. "Legendary Indian leg spinner"Anil Kumble's engineering field
  7. 14. The part of a computer used to store all data and files
  8. 15. Who invented the light bulb?
Down
  1. 2. This genius billionaire built a high-tech suit to become a superhero
  2. 3. A device that converts electrical energy to mechanical energy
  3. 4. A system that connects multiple devices to share data
  4. 7. The longest wall in the world
  5. 9. Who invented the telephone?
  6. 11. According to Newton’s First Law, an object at rest stays at rest—just like this common habit
  7. 12. The process of converting raw materials into finished products