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

You are on your way to visit your Friend, who lives at the end of the hill. It is his birthday, and you want to give him the cakes you have made. Between your house and his house, you have to cross 5 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake. How many cakes do you have to leave home to make sure that you arrive at a friend's house with exactly two

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Using Only Five 5's and any mathematical operator make sum as 37

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?