Replace the question mark with the number below given a simple math problem.

Teacher ask the student

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

what did student replied ?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Can you move 2 matchsticks to form four equal sized squares.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

What have one eye but still cannot see?

In the image given, you can find several triangles. Can you count them all?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

A man is sitting in a pub feeling rather poor. He sees that the man next to him is extremely rich. He turns to the rich man and says to him, 'I have an amazing talent; I know almost every song that has ever existed.'
The rich man laughs.
The poor man says, 'I am willing to bet you all the money you have in your wallet that I can sing a genuine song with a lady's name of your choice in it.'
The rich man laughs again and says, 'OK, how about my daughter's name, Joanna Armstrong-Miller?'
The rich man goes home poor. The poor man goes home rich.

What song did he sing? A man is sitting in a pub feeling rather poor. He sees the man next to him pull a wad of £50 notes out of his wallet. He turns to the rich man and says to him, 'I have an amazing talent; I know almost every song that has ever existed.' The rich man laughs. The poor man says, 'I am willing to bet you all the money you have in your wallet that I can sing a genuine song with a lady's name of your choice in it.' The rich man laughs again and says, 'OK, how about my daughter's name, Joanna Armstrong-Miller?' The rich man goes home poor. The poor man goes home rich. What song did he sing?