Hi expert, for

iii) is it credit card bill accepted or need to get bill from petrol station it self

Hi guys..
I have this questions:

I have just embarked on a sole proprietor business in Malaysia. I have a few questions which I hope some of the experts out there can help to answer:
1) What are the tax forms that I would need to fill up next year?
2) What are the type of deductions that I can use as my business expenditure? Can I use:
i) Housing loan - I'm using my current house as the business premise
ii) Car loan - I'm using my current car as my business mode of transport (to deliver the goods). What if the car i already bought earlier?
iii) Parking tickets, petrol and tolls - I incur all these costs when i deliver the goods
iv) Entertainment - Once in a while, I will have to take my clients out for dinner.
v) Any other things that's considered as business expenditure? (Electricity, water bill)?