How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

What is more useful when it is broken?

Replace the question mark with the correct number in below Picture:

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

What kind of storm is always in a rush?

What is harder to catch the faster you run?

The Little ant seems to be always confused. Do you know why?