A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour.
-4
The IRS processes more than 2 billion pieces of paper each year.
28
More than a billion transistors are manufactured every second.
-25
Castor oil is used as a lubricant in jet planes.
-5
Contrary to popular belief, putting sugar in a car's gas tank will NOT ruin its engine.
25
The cigarette lighter was invented before the match.
210
An airplane mechanic invented Slinky while he was playing with engine parts and realized the possible secondary use for the springs.
12