Answer:
There is an ancient invention. Still used in some parts of the world today. That allows people to see through walls.
What four letters frighten a thief?
What is the least spoken language in the world?
I have branches yet no leaves trunk or fruit
What do spiders in Silicon Valley want to be when they grow up?
A caribbean shape that makes ships disappear.
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?