Why is it very easy to weigh a fish?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using 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?

Replace the question mark with the correct number.

Decode this picture on T-Shirt and tell what it says ?

Why is the Hole below a Lock?

Which number should replace the question mark?

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?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?