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 you make number one disappear by adding something to it?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Can you count the number of triangles in the given figure?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

Can anyone tell me a word in the English dictionary which has a silent 'z'?