"any further questions" is a correct and usable phrase in written English. It can be used at the end of a presentation, tutorial, or lecture to signal to the audience that the speaker is open to taking questions. For example: "Thank you for listening. I hope this has been informative. If there are any further questions, please don't hesitate to ask.".
FIA adviser I think I haven't got any further questions.
He asks if I have any further questions.
Miss Smith is afraid to ask any further questions.
"And he just basically did not ask any further questions".
"Nobody asked any further questions," a former employee recalls.
Valve has a big FAQ here if you've any further questions about how this whole thing works.
Participants will be offered the opportunity to ask the researcher any further questions.
I love the desktop app, it’s always running on my Mac. Ludwig is the best English buddy, it answers my 100 queries per day and stays cool.
Cristina Valenza
Retail Lead Linguist @ Apple Inc.