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

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

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

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

Identify the 10 differences between the two given pictures.

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

A bomb exploded in a room full of married couples and no one died. How?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

What makes this number unique: 8,549,176,320?