Classify the following incomes into operating income, other income, exceptional income or extra­ordinary income: 

1. Interest earned by a bank. 

2. Interest earned by a manufacturing company on the fixed deposits it kept with the bank. 

3. Sale of scrap arising out of manufacturing process. 

4. Fees earned by the manufacturer of computer by providing annual maintenance services to its customers. 

5. Profit on sale of machine. 

6. Profit on sale of shares in a subsidiary company. 

7. Premium received on the issue of new shares. 

8. Amount received on one time settlement of a court case. 

9. Provisions no longer required written back. 

10. Rent received by a trading company by letting out its premises.