Why do you find that most of the buildings are deprived of the 13th floor?

What does the below mathematical rebus mean?

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

Rearrange the letters in "new door" to make one word.

Teacher ask the student

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

what did student replied ?

What number when divided in half becomes zero?

What has one eye, but can’t see?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

A father is locked up in jail. His wife has gone bankrupt. Their male child has to sell his hotel in order to gain some money. Yet their girl child does not care and is quite happy.

How can someone be so rude?