Question

It is a 9 letter word 12356 456789
If u loss it you die
56 is one type of disease
89 indicates exact location and time
2and7 are same letters,3and8 are same
5and9 are same letters
What is it

Answer 1

I think the number is '123456789' and not '12356 456789' ( the number you've given has 15 digits means 15 letters so..)

The word is HEARTBEAT.

If I lose it I will die.

56 is TB- tuberculosis (disease)

86 is at (indicating exact time and location)

2nd and 7th 'E'

3rd and 8th 'A'

5th and 9th 'T'