You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Count the number of squares in the picture below.

You can see three almost identical images below. Can you spot the odd one out from them?

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?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

If an electric train is travelling south, then which way is the smoke going?

I am an odd number. Take away a letter and I become even. What number am I?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Below rebus represent famous DiCaprio movie. Can you name it?