Find out the correct meaning of 'A heard nut to crack' A Difficult B Not easy C Tartar D Difficulty Find out the correct meaning of 'A heard nut to crack' Correct Answer Difficult Bissoy MCQ Team Jun 04, 2023 English Meanings of Word রাজশাহী বিশ্ববিদ্যালয় A1 ইউনিট : 2012-2013