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

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

A father's child, a mother's child, yet no one's son.

Who am I?

What is always in front of you but can’t be seen?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

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

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Identify the hidden meaning behind this picture?