World's Oldest Nanostructures founded in 6th century BC pottery has been discovered at which place?

Which Indian mathematician who has been successful in solving the questions of the Kadison-Singer problem and Ramanuj Graf has been jointly awarded the prestigious "Michael and Sheila Held" award in the US?

World Heritage Day is observed on which of the following days?

According to a report by industry body FICCI, what percentage of jobs are expected to decrease due to Corona crisis in India?

Recently, who has received the "Best Film" award at the "Cannes Film Festival-2021"?

Which of the following body develops face protection mask for health care professionals handling COVID-19 patients?

What is India score in "Oxford COVID-19 Government Response Tracker"?

How much will be contributed by the Government of Sri Lanka to the SAARC Corona Emergency Fund ?