By using 'because' continuously three times, can you make an English statement ?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

What is black when you buy it, red when you use it, and gray when you throw it away?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

What does this rebus means ?

PROG WORKRESS

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

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

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

During which month do people sleep the least?