Question

sold household furniture and paid the money into business journal entry

Answer 1

Cash/Bank a/c dr. 2000

To Furnicture a/c. 2000

Cash comes into the business so it is debited(debit what comes in, credit what goes out)

Furniture goes out from business so it is credited.

Also the furniture is an asset and has debit balance so after selling it, it should be credited to close the account.