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

There is something which is always coming but never arrives?

What has many keys but can’t open a single lock?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

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

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

What kind of band never plays music?

Find the value of "?" in the ball picture Riddle below:

There was an aeroplane crash, every single person died, but two people survived. How is this possible?