Complete the table series riddle by finding the number that can replace "??".

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

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

What kind of tree can you carry in your hand?

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

What kind of storm is always in a rush?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.