- Who invented the safety pin?
- When was helicopter Invented?
- Jet Engine was invented by_____________?
- The US president who invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel was___________?
- Edwin Budding who invented Lawnmover belongs to__________?
- Who invented optical fiber?
- Gulf war started in________?
- Which number is considered lucky in Italy?
- Hazrat Ibrahim (A.S) was from the city of ‘Ur’. It is located in________?
- Bulb was invented by?
- Radio was invented by_____________in 1895?
- In 1940, first electronic computer was invented by_______?