Using Only Five 5's and any mathematical operator make sum as 37

I’m tall when I’m young, and I’m short when I’m old. What am I?

During which month do people sleep the least?

What does this simple rebus mean?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

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?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

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

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"