Doubts related to debenture

Q1 ABCD ltd. issued 10,000, 9% debenture of Rs100 each at a discount of 10%, which will be redeemed after 5 years at a premium of 10%. Calculate the discount on loss of issue of debenture to be written off each year.{ pls provide solution}

Q2 Morsent Ltd. issued 15% debenture of Rs100 each at a premium of 10% which are redeemable after 10 years at a premium of 20%. The discount of loss on redemption of debenture to be written off every year is :{pls provide solution}

Q3 Ram Ltd. purchased a car from Harish Ltd. for 10,00,000 and th consideration was paid by issuing debenture of Rs 10 each at a premium of Rs 2.5 each. Calculate the amount to be credited to debenture account.{pls provide solution}

Q4. ABC. Ltd purchased a machinery from Microtee Ltd. for Rs 50,00,000 and the consideration was paid by issuing debenture of Rs 100 each at at a discount of 20%. Calculate the amount to be credited to debenture account.{pls provide solution}

Q5. T Ltd. has issued 15% Debenture of Rs 20,00,000 at a discount of 10% on April 01,2004 and the company pays interest half-yearly on june 30 and December 31 every year. On March 31,2006,the amount shown as  "interest accrued but not due" in the Balance sheet will be:{pls provide solution}

I am having doubt with these problems.

Thank you for helping.