If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

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?

A father's child, a mother's child, yet no one's son.

Who am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Who is that with a neck and no head, two arms and no hands? What is it?

There is a rock group of four men that do not sing. Name It?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

Count the number of triangles in the below picture?

How can you write nineteen in a manner that if we take out one, it becomes twenty?