How can you leave a room with two legs and return with six legs?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

What two things can you never eat for breakfast?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What will you call your mother's brother's brother-in-law?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?