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

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

What has 88 keys?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Why are televisions attracted to people?

How many times can you subtract the number two from the number fifty?

Which Travels Faster? Solve below famous picture riddle:

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?