(Anonymous) 2020-02-09 10:33 pm (UTC)(link)
He calls himself Five because his name is Number Five.

(Anonymous) 2020-02-09 10:41 pm (UTC)(link)
I thought it was his IQ.

(Anonymous) 2020-02-09 10:46 pm (UTC)(link)
No that’s the IQ of his brother, Number Four.