13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

What kind of storm is always in a rush?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

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