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

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

What number do you get when you multiply all of the numbers on a telephone's number pad?

How could a baby fall out of a twenty-story building onto the ground and live?

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

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

If eleven plus two equals one, what does nine plus five equal?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.