I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What do you see in the image below

On 26-01-2022, Juli was murdered at her house in a city in India in the afternoon. There were three suspects in the murder and the following are the statements that were given by them:

John: I visited my village that day.
Jacob: I was out to deposit my house tax in the municipality office at that time.
Jonny: I was at a friend's place having lunch at that time.

Can you find out who is the murderer?

Rectify the following equality 101 - 102 = 1 by moving just one digit.