reasoning Maths Puzzle Numerical Ability Data Interpretation

It is a 9 letter word-123456789.
If it fails u die.if u can 234,u have 1234.
56 is 1type of disease.
89 indicates exat location nd time

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reasoning Other Question

A Beggar's Brother Died,
But
The Man Who Died Had No Brother

How Could This Be...?
If u look at me
I'll look at u
If u grin at me
I'll grin at u
I u'll dance
I'll also dance
Bt if u shout,
Sorry, i can't. Who am i ?