What does this rebus riddle means ?

Teacher ask the student

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

what did student replied ?

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

You can hear me, but you can't touch or see me.

What am I?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?