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

A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

Count the Triangle in the figure given below:

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

What number do you get when you multiply all of the numbers on a telephone's number pad?

There is an ancient kingdom where every married woman keeps information regarding the fidelity of other men. However, what they don't know is the fidelity of their own husbands. Also, there is an ancient belief that they don't tell each other about the fidelity of their husbands.

On a certain day, the queen of the kingdom declares that she has identified at least one unfaithful man in the kingdom. She allows the wives to identify and gives them authority to kill their husbands if they are unfaithful at midnight.

How will the wives manage it?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

A father's child, a mother's child, yet no one's son.

Who am I?