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

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

What do you get if you add 2 to 100 four times?

What has one eye, but can’t see?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Why is it very easy to weigh a fish?

what does this picture(rebus) riddle means ?

Imagine you are in a room with no windows or doors. How will you get out?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?