1. Define an annuity and explain its characteristics. 2. Explain the difference between a simple annuity and a compound annuity. 3. Calculate the future value of a simple annuity. 4. Calculate the present value of a simple annuity. 5. Explain the concept of the annuity due and how it differs from an ordinary annuity. 6. Calculate the present value of an annuity due. 7. Explain the concept of a perpetuity and how it differs from an annuity. 8. Calculate the present value of a perpetuity. 9. Explain the concept of a growing annuity and how it differs from a regular annuity. 10. Calculate the present value of a growing annuity. For each of the questions, you can provide examples and show step-by-step calculations to understand the concepts better.