John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

What jumps when it walks and sits when it stands?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

What number should come in place of the question mark below?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?