Anything; whatever — often used politely in phrases like 'please tell me anything you need'.
ご不明な点は何なりとお尋ねください。
If you have any questions, please feel free to ask anything.
時間の変更は何なりと相談してください。
Please feel free to discuss any changes to the schedule.
手伝えることがあれば何なりと言ってください。
If there's anything I can help with, please tell me.