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

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.