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

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

How many letters are in the alphabet?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?