They are placed on the inside of the right-side doorpost as you enter a room. It should be placed on the lower part of the top third of the doorpost so that it's around shoulder height and it should be placed on an angle so that the top of the mezuzah points toward the room being entered.
In One Direction
They should be facing in the direction of the book.
the elephant should face the entrance of the house.
They should face north.
When you are doing pooja ur face should be in East side...
it should face the sun so it can absorb the energy and light
The proper way to hang a Mezuzah is on the right doorpost, when entering a room. It should be placed at the bottom of the top third of the doorpost height. It should be at a slight angle (about 15 degrees) facing inwards, towards the room. It should be installed using nails, screws, adhesive or other permanent installation method.
It doesn't matter which direction you face while meditating. It doesn't matter how you sit, what you wear or when you meditate.
east to west
There is no Correct answer for that, it could face in any direction
Face it west so there is light on it in the evening.
No restrictions on the Muslim home direction to face per Islam teachings. However, Muslims during praying should face the direction to Kaaba ln Makkah (or Mecca) in Saudi Arabia.