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.

Can you divide the below-given shape into four equal and identical pieces?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

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 a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

How far can you walk into the woods?

The more it dries, the wetter it becomes. Can you tell what it is?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?