Question

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight? 

Answer 1

I think for the 8 passengers mentioned in the question

Answer 2

I don't know it's exact answer, but I think because of 8 passengers that is mentioned there.