There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Count the squares in the matchstick puzzle below?

What is the next number in this series?

4,12,84,3612....

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

I am white when I am dirty, and black when I am clean. What am I?

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?