Job interview

3 Irishmen at a job interview.

The interviewer says to the 1st one, " what 6x6?"

Pat says " 75 "

The fella says " Go outside and send Mick in "

Mick goes in again the fella says what is 6x6? "

Mick thinks and says " Wednesday "

Again the fella sends him out and in comes Declan.

The interviewer asks, "What is 6x6?"

Declan says "36 "

Interviewer says " Hooray and how did you get that answer?"

Declan says "Easy.

Spoiler:

I took 75 away from Wednesday "