1. Who was the first woman to fly solo across the Atlantic Ocean?

2. Who is the American inventor of the first fully electronic television system?

3. What material is most commonly used as the substrate for integrated circuits?

4. What component, originally used in WWII radar systems, is the heart of a microwave oven?

5. Who invented the first practical automatic dishwasher in 1886?

6. What mathematical technique does a GPS receiver use to determine its location based on satellite signals?

7. What type of waves does a radar system use to detect objects?

8. What physical principle allows light to stay inside a fiber optic cable without leaking out?

9. What were the first recorded words ever spoken into Edison's phonograph?

10. Why did Walter Hunt invent the safety pin in 1849?

11. Which company coined the term 'Zipper' for Gideon Sundback's fastener?

12. Which common mathematical tool did the pocket calculator eventually make obsolete?

13. Unlike traditional carving or milling, 3D printing is known as what type of manufacturing?

14. Which chemical element is added to natural rubber during vulcanization to make it durable?

15. What event reportedly inspired Frank McNamara to invent the first universal credit card?

16. What is the primary function of the small tail rotor on a standard helicopter?

17. What does the acronym UAV stand for in the context of drone technology?

18. Which feature of the original iPhone set it apart from most 'smart' phones of the time?

19. What is the primary characteristic of a blockchain ledger?

20. The term “mark twain” originally referred to what?