From the following financial information, select non-cash investing, financing and operating activities:

Redemption of debentures by converting into equity shares.

Buy back of equity shares.

Purchase of fixed assets in exchange of preference shares.

Depreciation on fixed assets.

Increase in debtors.

Loss on sale of plant.

Decrease in inventories.
Amortisation of patents.
Issuance of equity share for cash.
Bonus shares.