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

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?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Find the next number in the sequence

1, 2, 6, 21, 88, __?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Can you count the number of quadrilaterals in the picture below?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.