When using 360-degree feedback, it's crucial to ensure anonymity and confidentiality to encourage honest and constructive feedback. Additionally, it's essential to use feedback as a developmental tool rather than for performance appraisal, fostering a culture of continuous improvement and growth within the organisation.

You might want to think about how you can send the questions, Survey Monkey or Google Forms is a good way to set up your survey. 

Questions you might want to ask, and to whom:

For Peers (for those who are at the same level as you, for example, other senior leaders):

1. How effectively does the manager collaborate and communicate with colleagues within the organisation?
2. To what extent does the manager support and encourage teamwork among peers?
3. Does the manager actively seek input and feedback from peers when making decisions?
4. How well does the manager handle conflicts and disagreements within the team?
5. Does the manager demonstrate empathy and understanding towards colleagues' needs and concerns?
6. Rate the manager's ability to foster a positive and inclusive work environment.

For Direct Reports (for those who report directly to you):

7. How clearly does the manager communicate expectations and provide feedback to the team?
8. Does the manager provide opportunities for professional growth and development?
9. How well does the manager support the team in achieving its goals and objectives?
10. Rate the manager's effectiveness in resolving team conflicts and addressing employee concerns.
11. Does the manager demonstrate fairness and consistency in performance evaluations and promotions?
12. How would you rate the manager's leadership style (e.g., supportive, directive, empowering)?

For Supervisors/Higher Management (for the people/person who manages you):

13. How effectively does the manager align team goals with the organisation's overall objectives?
14. To what extent does the manager contribute to the overall success of the department or organisation?
15. Rate the manager's ability to make strategic decisions and manage resources efficiently.
16. How well does the manager handle feedback and criticism from superiors?
17. Is the manager responsive to changing market conditions and adaptable to new challenges?

For Self-Assessment:

18. How do you rate your own leadership skills and abilities?
19. What do you believe are your key strengths as a manager?
20. What areas of your management style or behaviour do you think need improvement?
21. How well do you handle constructive criticism and feedback from others?
22. Describe the steps you have taken to address areas of improvement identified in previous feedback assessments.

You can read more about 360-degree feedback here.