The ball on top of a flagpole is called a 'truck'.
24
More than a billion transistors are manufactured every second.
-25
The cigarette lighter was invented before the match.
210
A small airplane can fly backwards.
75
A Citreon 2CV with an oil leak once travelled 500 miles through Italy after its gearbox was filled with bananas!
16
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There are only 14 blimps in the world.
69