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

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Whats the next number in the below number sequence pattern.

How many letters are in the alphabet?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

The King of a distant land had heard that Birbal was one of the wisest men in the East and so desired to meet Birbal. He sent Birbal an invitation to visit his country.

In due course, Birbal arrived in the distant kingdom. When he entered the palace he was flabbergasted to find not one but six kings seated there. All looked alike. All were dressed in kingly robes. Who was the real king?

The very next moment he got his answer. Confidently, he approached the king and bowed to him.

How did Birbal know who was the real king?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den