what is the right light setting for a scene.....
 

i will like to know the number and types of lights one needs in his or her scene to bring out good rending results.not forgetting their intensity...:confused:
and the positions their should be.....:alien:

Not a simple question to answer since there are many different formulas/systems/setups, etc. Also depends on the type of look you are going for.

Generally speaking, i encourage you to google "3 point light system". It's a system that is the basis for many lighting setups.