They'll tell you! (Source: am an engineer)
Well, alright." "Girl, I feel with my nerves."
By her suntan !
Because he didn't truss it.
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".
Because they don't have any chairs. Source: my five-year-old.
Canta Plaus.