A. You need more information like was the payment recorded as a Prepaid Rent or was it recorded as an Expense. If it was recorded as prepaid Rent you need to do an adjusting entry to transfer the amount of rent from the Prepaid amount to the expense account.
B. The amount is given to you and all you need to do is record depreciation expense for one month.
C. This is similar to A, except you know the amount was recorded as a Prepaid so you have to transfer the amount to the expense account.
D. You just need to journalize the transaction to the PrePaid account.
E. The amount is given to you so you just need to record the salaries expense.