Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

If,

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

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

What does does this rebus picture means ?

There is a place where if I stand up straight, I will still be considered sideways.

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

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

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?