What will you call your mother's brother's brother-in-law?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

If,

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

Which is the correct shadow of the bird?

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will be doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

Can you tell a 3D object that has just two surfaces?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?