"6 feet under" means dead and buried
In relation to what.
Count the people in the room and multiply by 2. If you want to know how many SQUARE feet are in the room, multiply 13 times 22.
different for different people, average 2 1/2 feet.
2,000
The heads are not slightly elevated as compared to the feet, but people are buried above ground.
60 ft
There are 3000+ people buried in Westminster Abbey.
Three
Based on your question alone, it is impossible to tell how many millennia it would take for an object "like this" to be buried 300 feet in the ground. We cannot see the object to which you are referring.
Just one.
Six feet underground. This usually refers to someone who is buried.
2 feet.
There is no way to know. Many people were buried in unmarked graves.
There are three.
You are buried 6 feet underground nowadays
"6 feet under" means dead and buried