That is on your end. I just tried it at work where I don't have my login and it works with Firefox. I just clicked on question and it expanded. You can also copy paste it from cell if that fails. I have to do it like that on mobile for some reason.
I'm not sure. I just opened the spreadsheet on my mobile and I can't see the rest of the question. I'll try on my computer later. But if it's only me, then don't worry. I'll sort it out somehow. I check everything on my computer when I'm not on vacation.
It isn't working on mobile, just told you so above. But that isn't up to us, it is google with its shenanigans. Maybe try desktop mode or something. I don't like looking at it on mobile anyway. Way to small screen for this spreadsheet.