A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

I make two people out of one. What am I?

What does an Island and the letter T have in common?

What is more useful when it is broken?

What do you see in the given picture?

I have eight fingers and two thumbs but I do not live. What Am I?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

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?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?