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.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you find the key in the picture below?

Out of four images which one is the odd one out?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Be active and find the killer in the picture Riddle below.

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

There is something which you can be arrested for attempting but not for successfully completing.

Can you count the number of quadrilaterals in the picture below?