the correct info is that the current number of selected fos is 28 pilots divided into groups of 6 each , the first group did their interview and 2 passed out of 6,the second group 5 passed one didnt and every sunday they,re holding interviews till they finish these pilots as for the questions some are staright questions like srs,gs mini ,predictive and reactive windshear ,anti icing questions on the use of hold over time all basic except for a number of questions which are also basic but are from the time we were studying at flight school like great circle ,rhumb line tracks .occluded front ,they are not difficult but not expected .the major cause for failure is a lot of guys get so nerves they screw up and its not entirely their mistake when ur being interviewed by 5 chief pilots !!!!! 3 are enough i hope this info is usefull.