They take things literally.
Mount Cleverest
A *cow*culater. I made it up myself, so don't groan at the pun.
The business plan.
They take things literally
A: Once when you tell it once when you tell her the punchline and once when she gets it.
Because when they are kids their mothers always tell them: "If you grow up you have to work" *Translated from italian hope it makes as much sense as there
Someone who takes everything literally
Because they take things literally.