I think these airlines should pick up the techniques that ADM Rickover (father of the United States Nuclear Navy) used back in the day to interview new officers going into the nuke Navy.
"When interviewing candidates for the nuclear navy, Rickover would, in order to throw them off and test them, seat them in chairs with shortened front legs and at the same time position them so that the sunlight streamed through specially adjusted venetian blinds straight into their eyes. That way “they had to maintain their wits,” he explained, “while they were sliding off the chair" "
