Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

Can you identify the famous TV character from the rebus below?

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?

What is the fastest way to double your money?

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

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months