What does the below rebus riddle means?

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?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Spot the cat in the picture below

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?