The Little ant seems to be always confused. Do you know why?

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?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Which number should replace the question mark?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

O_er_t_o_

Complete the missing letters of the given word.

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

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

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