go for more interview.and buy some book about how to ace the interview.Yes,u r a product wanting the buyer to buy u..u must know ur personal asset well,and sell urself,and let the interviewer know y u r the one
About the r u tahan mati or not..i agree it is indeed a stupid question,i wont take that company offer too if i got it.They can ask"are u able to work under pressure or slightly longer working hour?" wat tahan mati la..is abit no standard for the interviewer which shows he/she also is not really that on par..
go for more interview..u get experience