I have a few ideas of my own , hope it would help,

with a hundred grand u can do the following businesses

1.get a motorcycle and a rider on hire purchase basis who can be settling u 3k every week
2.start a phone business and a mini business centre, can sell lines,recharge cards and maybe rent out a store and hire it to a barber to be using while u are doing your business there.
3.Try the tokunbo clothes business,
well u can look for others but this is a few i got, have fun.