I live in a house that is one of the original homes,(I believe) in Nebraska. We have been having issue with light bulbs blowing out soemtimes more then one, and there has been a few times where its made a sizzling noise, flickered then blown out. I do not own the home I am renting an my landlords for months have said "Well were sorry. what a bummer, that never happened when we lived there." And nothing is ever done. I'm also concerned that the 4 rooms in the front of the house have only 1 outlet and each room is 20 x 15 ft. is this legal? I was always told every room has to have an outlet every 6 feet.I'm, not sure what is legal in Nebraska... can anyone help me :)

That sizziling could be a loose neutral and causing bulbs to blow.

OK, thank you, one more question... hopefullly lol... will that cause an electric9al fire? I'm worried about that because of how old the home is, and the fact that the landlords told me "to not under any circumstances) to let an electrician look at it that its their house", so that lead to me to believe they know what's wrong with the house, and don't want to get caught. The house is in great condition!! I love it but I feel like their hiding things from me! I just hope its not a big deal !

They should not have a Problem with an Electrician looking at it if they don't have to pay.
If they do, I would especially worry.
The connection needs to be corrected.
Hopefully Your Landlord has Working Smoke detectors.

I do not mean to scare you, but lamps burning out in the fashion you explain can be a serious issue. I have had devices such as exhaust fans, applainces, etc, burst into flames due to loose or open neutral conditions.

Sizzling is never good, and this will not get better or go away on its own.

This needs to be checked and repaired.

Strat is very correct, be sure smoke detectors are installed, AND WORKING.

As far as how many outlets are installed, depend on the age of the home. Local codes often require a minimum of outlets in older homes, but not as many as current codes may require.

You will need to check with the local code enforcement or building official.