Problem- show the sequence of reactions to use to prepare

Question

Problem- Show the sequence of reactions to use to prepare FIVE of the following from either benzene or toluene.

1) 4-Chloro-3-methylbenzoic acid (3 steps)

2) 2-Bromo-4-chloroaniline(4 steps)

3) 3-Bromo-4-methylphenol (4 steps)

4) 2-Bromo-4-nitrobenzoic acid (3 steps)

5) 4- Amino-3-Bromobenzoic acid

6) o-nitrobutylbenzene

I need expert help to solve the above question. Show each and every step.