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

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Can you count the number of triangles in the given picture?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

I look at you, you look at me, I raise my right, you raise your left. What am I?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?