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?

What happened when the wheel was invented?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Count the number of triangles in the given picture.

How can a man go eight days without sleep?

What time is it when an elephant sits on a fence?

What does a man do only once in his lifetime, but women do once a year after they are 29?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

I have no life, but I can die. What am I?