Article Detail World Post Office Day Answer: 9 October Similar Questions : 1. Birthday of Shri Lal Bahadur Shastri Answer: 2 October, 1904 2. Minorities Rights Day Answer: 18 December 3. World Diabetes Day Answer: 27th June 4. Teacher's Day Answer: 5th September 5. World Book and Copyright Day Answer: 23 April 6. World Adult Day Answer: 18 November 7. World AIDS Day Answer: 1 December Read more from - Important Days of Year