If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

What do you get if you add 2 to 100 four times?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

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?

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

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Can you count the number of triangles in the picture below?

Can you replace the question mark with the correct number in the below table sequence?