Answer:
When is 1500 plus 20 and 1600 minus 40 the same thing?
This is a shape and a symbol that we literally cannot live without. What is it?
There's one in every deck of cards and in a famous movie
What is in the middle of nowhere?
No sooner spoken than broken. What is it?
It rows quickly with four oars but never comes out from under his own roof. What is it?