Please help me decide YES or NO as applicable for each of the following situations to indicate whether the situation would result in the net book value of bonds payable EQUALING the balance of the bonds payable ledger account.

1. The bonds were issues at face value.

2. The bonds were issued at a premium.

3. The bonds were issued at a premium, and the premium is fully amortized.

4. The bonds were issued at a discount.

5. The bonds were issued at a discount, and the discount is fully amortized. -

6. The bonds have matured and are paid off.