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?

A man dies of old age on his 25 birthday. How is this possible?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

who is silent in the parliament?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

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

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

A man was just doing his job when his suit was torn. Why did he die three minutes later?