A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

What is the next number in this matchsticks series riddle?

Find the number of squares in the below picture

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

How many triangles can you find in this given picture?

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

Count the number of balls in picture below:

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What does the below rebus puzzle mean?