Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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

How can you write nineteen in a manner that if we take out one, it becomes twenty?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

What do you answer even though it never asks you questions?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?