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

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

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

What seven-letter word has hundreds of letters in it?

The cream is heavier than Milk. True or False?

What is the centre of gravity?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?

Our product and our sum always give the same answer. Who are we?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.