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321. Platinum jubilee is attributed to which figure?
A. 70 years
B. 60 years
C. 25 years
D. 50 years

322. East London is the city of which country?
A. South Africa
B. Brazil
C. Burma
D. Indonesia

323. What is the length of the longest-ever megaflash seen in Southern USA?
A. 750 km
B. 755 km
C. 765 km
D. 770 km

324. Name of the US First Lady is __________?
A. Jill Biden
B. Christiana Biden
C. Serena Biden
D. None of these