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

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Solve the following series:
AZ, GT, MN, __, YB

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Buy me, smell me or deliver me, I do not change.

Who am I?

There is something which you can be arrested for attempting but not for successfully completing.