Identify the hidden meaning behind this picture?

Teacher ask the student

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

what did student replied ?

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

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

I have an eye but still cannot see.

Who am I?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

They are three errirs in this question. Can you find them?

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