When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

What type of tree can I carry in my hand?

Spot what is wrong here in below Picture?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

Solve below popular number sequence
314 159 265 358 979 323 846 ?