Replace the question mark with the number below given a simple math problem.

Find the last number in the series below:

voN luJ yaM raM ---

What makes this number unique: 8,549,176,320?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Keyboard words are not in alphabetical order, Why?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?