Can single pipe be connected and read by multiple processes

From my understanding, C pipes are like a special kind of file, where internally, the kernal keep tracks of the openings and closings from each process in a table. see the post here

So in that sense:

1. Is it possible for 1 single pipe to be connected by multiple processes?
2. If it is possible, can multiple processes read the same data?
3. If 2 is possible, will they be reading the same data, or does reading the data "empty" the data?

For example: process 1 writes into pipe, can process 2,3,4 read the data that process 1 wrote?