You are the manager of a firm that has an exclusive license to produce your product. The market demand and cost function

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You are the manager of a firm that has an exclusive license to
produce your product. The market demand and cost function are,
P = 23 -8Q and C(Q) = 3Q + 95.
(a) Find the profit maximizing quantity and price if you could
observe each customer's willingness to pay for the product and
charge different prices.
(b) Find the firm's profits and consumer's surplus in this
case.
(c) Find the deadweight loss to society due to having a
price-discriminating monopoly in this case.
(d) Find the profit maximizing quantity and price if you could
not observe each customer's willingness to pay for the product and
are therefore forced to charge same price for all units.
Note: This is the complete question, No further information is
needed or given in the question.