Name a key which is hardest to turn.

What is the relationship between these matchstick pictures below?

French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?

What is the riddle which can be asked all day with a different correct answer each time.

A tourist visits a small town for his research. While in the town, he decides to get a haircut. Since the town is quite small, there are only two barbers in the town � one on the North Street and one on the South Street. The barbershop on the North Street is a mess and the barber has a weird and pathetic haircut. While the barbershop at the South Street is pretty tidy and the barber as well has an impressive haircut.

Which barbershop will the tourist visit for his haircut and why?

Can you count the number of squares in the figure below?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

What is the next number?

77, 49, 36, 18 ?

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