Partial power outage ,facing single-phasing
Key question: Where are you (country/region)? If you are in the US/Canada or another area with 120V/240V power - i.e., &quot;regular&quot; receptacles &amp; lighting are 120V but a few large appliances (cooktop, oven, dryer, etc.) are 240V then you may have a &quot;lost leg&quot;. This is a very serious problem. The key reason I suspect this type of problem is:
after I hit turn/on touch wire of oven or cooktop then power would come back on.
That indicates a correlation between having 240V loads and other 120V circuits working. That can happen if you have a lost neutral or some other serious problem.
Call Your Electric Utility and tell them you have an Outage
The good news is that very often this is a Utility Company problem. Call them and tell them you have think you have an outage. Specifically a lost leg or lost neutral. They will (at least in the US) come out pretty quickly to check things  out. Most of the time this will turn out to be a problem on the utility's side - e.g., wire from pole to meter - and they will fix it at no charge. If they determine it is not their problem then you will need to get a licensed electrician to check things out.
As a very basic test, you can use a multitester (voltmeter) to check the voltage. In a normal receptacle it will be ~ 120V. If it varies significantly (more than a few V) and especially if 1/2 the receptacles read very high and the other 1/2 read very low or if the voltage varies significantly when you turn on/off the oven, cooktop or other 240V loads then you almost certainly have a lost leg or neutral. The only question is whether it is the main panel (electrician) or outside (utility).