Add spaces: Thehumanbodyanditsinherentfacultiesisthemostacute,accurate,sharpandrelentlessmasterdetective.

Answer: The human body and its inherent faculties is the most acute, accurate, sharp and relentless master detective.

Add spaces: theywillunderstandandcomprehendyourmessage

Answer: they will understand and comprehend your message

Add spaces: "Afewyearsagowehad200rentaltrucks,nowwehaveover1000andwe'regrowing,"saysPer-AndersGrosfjeld.

Answer:
"A few years ago we had 200 rental trucks, now we have over 1000 and we're growing," says Per-Anders Grosfjeld.