You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

How can one talk without saying a single word?

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.

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Find out the number of circles in the given picture having Illusion

Prove that the below maths equation is true.

8 + 8 = 91

Count the Triangle in the figure given below:

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?