(a) Calls-in-Advance:
Major Heading: Equity and Liabilities
Sub-heading: Other Current Liabilities
Explanation: Calls-in-advance is a liability as the company has received an amount not yet due. Hence, it is shown under current liabilities.
(b) Loose tools:
Major Heading: Assets
Sub-heading: Current Assets → Inventories
Explanation: Loose tools are consumed in the normal course of business and hence treated as inventory.
(c) Trade Marks:
Major Heading: Assets
Sub-heading: Non-Current Assets → Intangible Assets
Explanation: Trademarks are identifiable non-monetary assets without physical substance used in the business.