What goes up but never comes down?

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

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

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

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

Can you find out the missing number in the grid?

Can you make four (4) nines (9) equal 100?