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

What do you call a fish without an eye?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

If 1+9+8=1, what is 2+8+9?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

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?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What does a man do only once in his lifetime, but women do once a year after they are 29?