Answer:
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
What comes with your car, but travels more than your car?
Every country has one, though we are not the same. Waving to our citizens, throughout the wind and rain. What is it?
There is an ancient invention still used in some parts of the world today that allows people to see through walls. What is it?
What is it that after you take away the whole, some still remains?
What is yours but only used by others?