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

If Rajina's daughter is my daughter's mom, who am I to Rajina?

They are three errirs in this question. Can you find them?

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

What does this rebus mean?

O
N
C
E
TIME

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Find out the missing number in the picture attached:

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?