Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

People put me on the table and cut me but do not eat me. What am I?

How could a baby fall out of a twenty-story building onto the ground and live?

what does this picture(rebus) riddle means ?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

What is common among 11, 69, and 88?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Can you place three balls such that the equation shown in the picture holds true?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?