Do You See It?

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

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

The Federal bank of London is abducted by the robbers. The head of the robbers asked the cashier to empty their money vault to them and when suddenly cashier got a call from her father. To avoid any suspicion, the robber asked the cashier to pick the call and reply her father in the shortest manner possible.

The cashier told her father "Is there an emergency father, Call me when you are free and I will help you in your furnishing" and then the cashier hung up the phone.

After 10 minutes, police arrived at the crime scene.

How did the police know about the robbery?

What building has the most stories?

When it's bad luck to meet a black cat?

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

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

I have Rs.50 and I spend it in the way as below.

Can you make a six-letter word using the letters N, A and B ?