Congratulations! The first number to the lock combination is:

7

It’s time to have some Christmas fun,

With questions many, but answers one.

Be smart, be cunning, be quick, be wise,

To unlock quicker than Luke, your Christmas prize.

Each page reveals a part of the code,

Each puzzle solved, a new page to load.

We begin with a word often sung beneath timber,

A title, or day said by tongues less limber.