Can you count the number of matches in the picture below ?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

What's a single-digit number with no value?

What does below pictogram mean?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

Why is the Hole below a Lock?

A blonde put eyeliner on her head. Why?

Replace the question mark with the correct number in below Picture:

What is the difference between a jeweller and a jailer?

Can you fill the blank with the correct number?

6 30 870 756030 _____