Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

who is silent in the parliament?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

I cannot talk, but I always reply when spoken to. What am I?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

When can we add 2 to 11 and get 1 as the correct answer?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Forwards I am heavy, backward I am not. What am I?