With the help clues provided in the image, can you find the 5 digit key?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

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

How is the moon similar to a dollar?

Move three sticks of the spiral below to form a square.

Keyboard words are not in alphabetical order, Why?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Can you place three balls such that the equation shown in the picture holds true?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?