Can you find out who is the kidnapper in below Picture and why, Explain ?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

How many times in a given day, minutes and hour clock comes in a straight line ?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

What is the next number in this matchsticks series riddle?