• The tallest flagstaff in India, it flies at a 46-metre height and was built by the East India Company when it occupied a location first in 1639. Where in Chennai would you find this flag? - Fort St George
  • The Kalashnikov is the world’s most produced assault rifle. In which year was its most famous version adopted and standardised? - 1947. That’s why it is known as the AK-47
  • What optical device was nearsighted model Grace Robin the first to show off in 1930? Contact lenses