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?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Move three sticks of the spiral below to form a square.

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

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

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Who are the happiest people in IPL match?