In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

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

Spot 5 differences in two Christmas tree below:

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

A man dies of old age on his 25 birthday. How is this possible?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

In the image below, can you find the value of an angle(y)

Why is a river so rich ?