বাংলাদেশের সবচেয়ে বড় নদী বন্দর কোনটি?
বরিশাল
খুলনা
নারায়নগঞ্জ
ভৈরব
World ' No-Tobacco Day' is observed on-----
May 25
May 28
May 30
May 31
In Cricket game the length of pitch between the two wickets is -----
14 yards
23 yards
22 yards
21 yards
Badminton is the national sport of-----
Indonesia
Scotland
China
Nepal