Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

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?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

In the picture given below, can you find out which digit will take place of the question mark?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Why 1729 is a magic number? Answer Logically.

I am the fastest animal but cannot climb the tree. What am I?

How many triangles do you see in the picture puzzle below?