Do You See It?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

What Deficiency does the below rebus represent?

VIT_MIN

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"

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

What Does this text mean:

important=important

In the picture given below, can you find out which digit will take place of the question mark?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

Find the missing number in the sequence below: