Hours of work overtime and rest days

• Can an employee bring a rest day forward to the next week?
• Can female workmen be employed for night work?
• Can my employer give me time off instead of overtime pay?
• How should overtime hours for shift workers be calculated?
• If an employee works overtime without company approval, are they eligible for overtime pay?
• If my employer asks me to work on a rest day, can they give me a day off instead of pay?
• Is there a salary limit for overtime pay entitlement?
• Must my rest day be on a Sunday?
• My rest day is a weekday. How much should I be paid for working on Sunday?