Which is right?

1.Martin has got brown ______ .
1. eye
2. eyes
2. Paula has got short black _____ .
1. hair
2. hairs
3.The tourist guide gave us some ______ about the town.
1. information
2. informations
4. We’re going to buy some ______ .
1. chair
2. chairs
5. We’re going to buy some new _____ .
1. furniture
2. furnitures
6. It’s difficult to get a _____ at the moment.
1. work
2. job
7. We had _____ when we were on holiday.
1. lovely weather
2. a lovely weather