What is another word for Brain Teaser in english

The list of words which can be used for Brain Teaser while creating sentence in english language. riddle mystery riddle, conundrum, subtlety, question, enigma, secrecy enigma conundrum, puzzle, riddle, mystification, perplexity puzzlement poser mystification puzzlement, stupor, trance, shock, glaze, bewilderment problem why brain-teaser closed book enigma, puzzlement, poser, mystification, problem, why 
Usage of Brain Teaser in sentences
Hindi to English Dictionary
English to Hindi Dictionary