The cigarette lighter was invented before the match.
210
The ball on top of a flagpole is called a 'truck'.
24
Jumbo jets use 4,000 gallons of fuel to take off.
19
A small airplane can fly backwards.
75
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10


