Pi
Two, but I don't know how they got in there.
None. They haven't got a policy on that.
Well many how???
Many hands make light work.
The mathematician says "2" The Physicist says "2, plus or minus 0.1" The engineer says "Probably around 2, but let's say 3 to be on the safe side".
A slice of Pi.
The director of Life of Pi.