50. Indian Navy's Vice Admiral Vinay Badhwar receives Alexander Dalrymple award from which country?
51. Who officially opened 32nd Summer Olympic Games in Tokyo?
52. Who was named advisor to Global Board of US India Business Council?
53. Group of 20 countries are holding talks at Naples in which country?
54. Carrier Strike Group (CSG) 2021 of which country has joined the Indian Navy for maritime exercises in the Bay of Bengal?
55. The largest carbon market in the world has been opened up by which country?
56. Which city has unveiled the world's first 3D-printed steel pedestrian bridge?
