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?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

What is harder to catch the faster you run?

Be active and find the killer in the picture Riddle below.

What's the only room from which no one can enter or leave

Here is a Swiss Cross. You have to make two straight cuts in the figure so that it is divided into four congruent pieces. Also, you should be able to join these pieces into a square then. Can you accept this challenge?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?