The combination of the door and a mouth means ‘opening of the mouth’ like the opening of a door. Because, asking a question is kind of like taking the courage to open your mouth.
In a door there is usually a little peep hole, that looks quite like the character. Moreover, to look through the peep hole we have to lean forward just like when asking someone something!
It looks like a door with a door-handle in it
The symbol looks like a door frame and a door opening with a hinge.
I associate the door with the real shape of the door and to ask I associate with a mouth opening.
The combination of the door and a mouth means ‘opening of the mouth’ like the opening of a door. Because, asking a question is kind of like taking the courage to open your mouth.
The character resembles a door. The character in the middle looks like a doorknob. To knock on a door can suggest asking a question.
The box in the middle is a mouth character, and the outer part of the character is a door. A mouth is peeking through a door to ask a question
In a door there is usually a little peep hole, that looks quite like the character. Moreover, to look through the peep hole we have to lean forward just like when asking someone something!
it’s a mouth and the ‘ above it is the question it’s asking
Looks like a questions and suggestions box.