One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

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?

Find the last number in the series below:

voN luJ yaM raM ---

What occurs twice in a week, once in a year but never in a day?

Move four matchsticks to the below square to form three squares?

By what process could you make a 'Tea-Table' into food?

What goes up but never comes down?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?