I answered mine with this and got it correct:
Keyword: Complicate
Picture: making things harder than they have to be
Answer:
Within a small chamber, an internal combustion engine combines a precisely measured mix of fuel (typically petrol or diesel) and air. Once ignited, this explosive combination causes an expansion of hot, pressurized gases to exit the chamber, typically via pistons or a turbine. Thus the chemical energy is converted, albeit often not very efficiently, into mechanical energy which can then be used to power motors and drive machines.
It should be: My mailman, Derek, is in a rock band with Hawkman.
A, B, and in some cases even D
