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

If you say my name, I will no longer exist. What am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

When it is alive we sing, when it is dead we clap our hands. What is it?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

What goes up but never comes down?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?