Article Detail World Laughter Day Answer: 10th January Similar Questions : 1. World Tourism Day Answer: 27th September 2. International custom day Answer: 26 January 3. Legal Services Day Answer: 9 November 4. World Post Office Day Answer: 9 October 5. CRPF foundation day Answer: 26 December 6. World Environment Protection Day Answer: 26 November 7. World Health Day Answer: 7 April Read more from - Important Days of Year