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

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

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"

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

Move four matchsticks to the below square to form three squares?

What has lots of eyes, but can’t see?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Why is it very easy to weigh a fish?

No one wants to have it, but if one got it, he does not want to lose it. What is It?