Are there some basic things I need to know about options when I am starting off?

I propose to invest in Gold ETFs (Exchange Traded Funds). What are the basic things I need to know about gold ETFs before investing in the same?

What are some basic things I need to know about a split versus a bonus issue?

What are some elementary things I need to know about futures and options?

What are some of the very important things I need to know about options?

Are there some key things that I need to be aware when I am subscribing to the rights issue by a company where I am holding shares?

I am planning to start options trader more as a buyer of calls and puts. Are there some basic things that I must remember?

Are there are any basic rules I need to follow when I am selling short?

As a trader in options, have a problem with timing my purchase and sale of options and so I lose money. Are there some basic rules on when to buy and when to sell options?

As an intraday, can you tell me some basic things that I need to be aware of and always keep in mind?

What are the important things I need to know about being an option seller?