Replace the question mark with the correct number in below Picture:

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

Whats the next number in the below number sequence pattern.

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

I have a head like a cat and feet like a cat, but I am not a cat. What am I?