In a cluster there is only one queen, hundreds of drones and thousands of work-woman.
The queen is the only mother for the cluster. Drones are male bees and they don't have stings.
During the flight a bee makes 350-435 wing moves per second. A bee flights is 3 to 10 km. The bees have to visit about 4 mln flowers to gather nectar for make 1 kilo of honey.