Not sure where you are, but if your house wiring is center-tapped 220V (110v-Neu-110v), it sounds like you have a loose Neutral connection. If the neutral feed wire disconnects, the loads on the two 110v branchs act as a voltage divider across the 220v feed. The "110v" circuit with the heavier loads (lower resistance) will have a voltage of less than 110v. The other "110v" circuit, with the lighter loads (higher resistance), will have voltage drop higher than 110V. This higher voltage can blow out light bulbs.

I know this, because it happened to my family's farm house. They periodically blew certain light bulbs. Sometimes very quickly, and sometimes after a long time. One day, during a storm, dad was looking out a window and saw a connection arcing on the power pole that fed the house, as the wind whipped the wires back and forth. After the electrician reconnected the neutal wire on the pole, they never had the blown-bulb problem again. "When" the bulbs blew all depended on what was running on each circuit at the times the neutral momentarily dieconnected.

Ken

__________________
"To invent, you need a good imagination and a pile of junk."
Thomas A. Edison (1847 - 1931)

 

And with this neutral problem the bulb brightness should change as the load on the other side of the neutral increases or decreases; the brightness should go up as heavier loads are added.

Bulbs are also sensitive to vibration, as caused by doors slamming or people walking on the floor above.