What is black when you buy it, red when you use it, and gray when you throw it away?

What Adam and Eve do not have but the rest of the people have?

John, Jack and Jill are in a desert. John doesn't like Jill and hence decides to murder him. He poisons the water supply of Jill. Since it is a desert area, Jill must drink or he will die of thirst.

Jack does not know of the actions of John and also decides to murder Jill. To succeed in his ill motives, he removes the water supply of Jill so he dies of thirst.

Jill dies due to thirst. Who murdered Jill?

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Replace the question mark in the picture below.

Can you find the missing piece of the Porsche?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

Can you fill the blank with the correct number?

6 30 870 756030 _____