Why metallic handles of a wooden door appear colder in winter?

Why does a wooden door swell during humid weather?

When you walk on a woolen carpet and bring your finger near the metallic handle of a door an electric shock is produced. This is because

Why do we paint wooden doors and windows?

Why the handles of the doors are at maximum distance from the hinges?

Explain why a piece of metal feels cooler than a piece of wood in winter.

Why do the metal utensils have wooden handles?

Why don’t we use a metallic handle to ari electric tester ?

Why does a metal bar appear hotter than a wooden bar at the same temperature? Equivalently it also appears cooler than wooden bar if they are both colder than room temperature.