Police detained two men at a Midtown hotel late Friday after a doorman reported they possessed a pair of pressure cookers like those used to make the Boston Marathon bombs. But the men say it was a misunderstanding: They plan to use the pressure cookers back home to prepare rice, chicken and meat. Mohammad Alotaibi, 20, and Ayoub Alawadhi, 21, pulled up to the InterContinental Hotel on East 48th Street on Friday evening with the pressure cookers in their car trunk, said law enforcement sources.