What do you think i am, a fool? You use what in questions when you ask for specific information about something that you do. Used in questions to ask for particular information about somebody/something.
(used interrogatively to inquire about the character, occupation, etc., of a person). We can use what to ask for information about things and actions:. Guess what is often used to tell someone that you have surprising news.
“ guess what!” “what?” “i bought a new car.” i'll tell you what i'm going to do: From longman dictionary of contemporary english what /wɒt $ wɑːt, wʌt/ s1 w1 pronoun, determiner, predeterminer 1 used to ask for information or for someone’s opinion what are you doing?