Answer:
The one who makes it, sells it. The one who buys it, never uses it. The one that uses it never knows that he’s using it.
Each morning I appear to lie at your feet, all day I follow no matter how fast you run. Yet I nearly perish in the midday sun.
It can cause deflation of tires when dropped from the rear of spy cars.
Without this, eating food and Steven Spielberg's career would be very different.
They try to beat me, they try in vain. And when I win, I end the pain.
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?