Seeking advice from Experts

[riq27]

Hi,just need some advice from experts on my below problems;1. Is it normal that the inspection light is on when i turned on my engine?2. My wiper not functioning sometimes when needed, i need to turn the wiper to the fastest then only it will function. When i want it slow, it could not function.3. My steering seems to make noise when i steer it left & right, sounds something like ekkkkkkk ekkkkkkk it get louder and kinda heavy.4. How to get my fuel indicator an accurate reading?5. Lastly, what's the best halfcut replacement for E30? M20 or M50?