John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

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

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

Replace the question mark with the correct number.

Where do you go to learn how to make ice cream?

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

Can you find a five letter word that is left with only two letters if one is removed?