There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

What do you answer even though it never asks you questions?

How could a baby fall out of a twenty-story building onto the ground and live?

What number divided by 4 is the same as that number minus 4?

If six children and two dogs were under an umbrella, how come none of them got wet?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

I am white when I am dirty, and black when I am clean. What am I?

What does this rebus means ?

PROG WORKRESS

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?