To delete questions, from the library, at first you will need to get into the Question Library available at the bottom right corner on the My Surveys home page (screenshot: https://prnt.sc/ye3mzSWaOeN9) Once you click on the Question Library, it will open a list of all the questions which are currently added to your library. Now you will need to click on the 3 dots of the particular question (that you are looking to delete) which will open a dialog box and from there you will find the option to delete (screenshot: https://prnt.sc/60ZTr1eX0Dog