Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

People make me, save me, change me, raise me. What am I?

A father's child, a mother's child, yet no one's son.

Who am I?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

There are 3 apples in the basket and you take away 2. How many apples do you have now?

What kind of storm is always in a rush?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.