Answer:
What invention lets you look right through a wall?
I am all around, yet to me you are half blind. Sunlight makes me invisible and difficult to find. What am I?
I make billions of dollars selling windows. Who am I?
I'm at the head of an elephant and at the tail of a squirrel
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic