What has no start, end, or centre?

Count the number of lines in the image below ?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

What has 88 keys?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Can you find a five letter word that is left with only two letters if one is removed?

Can you place three balls such that the equation shown in the picture holds true?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?