Energy is being wasted if a toaster is left plugged in after use.
21
There are only 14 blimps in the world.
69
Jumbo jets use 4,000 gallons of fuel to take off.
19
There's a Mumbai-based pizzeria that now delivers pizza by drone.
4
The ball on top of a flagpole is called a 'truck'.
24
More than a billion transistors are manufactured every second.
-25