what does the below math rebus puzzle mean?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

What does this below rebus puzzle mean?

Can you write down eight eights so that they add up to one thousand?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

I am white when I am dirty, and black when I am clean. What am I?

I can be cracked, made, told, and played. What am I?