| SN | Question | Answer |
| 121 | World Habitat Day was designated by United Nations General Assembly, it was first observed in 1986, its theme was Frontier Technologies as an innovative tool to transform waste to wealth | 1st Monday of October (07 October) |
| 122 | World International Day of Non-Violence designated by United Nations General Assembly It was first observed in 2007 | 2nd October |
| 123 | World International day of older persons,designated by United Nations General Assembly,it was first time observed in 1991 and its theme is “The Journey to Age Equality” | 1st October |
| 124 | World Mental Health Day was designated by World Health Organisation, its theme was Mental Health Promotion and Suicide Prevention and it was first Observed in 1992 | 10th October |
| 125 | World Post Day was designated by Universal Postal Union ut was First Observed in 1969 | 9th October |
| 126 | World Sight Day was designated by International Agency for the Prevention of Blindness Its theme was Vision First and it was first observed in 2000 | 10th October (2nd Thursday of October) |
| 127 | World Teacher’s Day was established by UNESCO, its theme was Young Teachers The Future of the Profession and it was first observed in 1994 | 5th October |
