During which month do people sleep the least?

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?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

What's the best place to go shopping in the ocean?

My location can be determined by the below rebus.
So where am i ?

what's the probability of getting a king or a queen from a pack of 52 cards?