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?

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

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

What is the below Rebus indicate?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Find the next number in the series.
1 10 24 43 67 ?

What is the next number?

77, 49, 36, 18 ?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?