Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Give it food and it will live; give it water and it will die.

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?

If an electric train is travelling south, then which way is the smoke going?

If you say my name, I will no longer exist. What am I?

How many sides does a circle have?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?