437. Individual for Person/People
(X) There were five individuals in the shop.
(O) There were five people in the shop.
Use individual with a single person as opposed to the group: The individuals must act for the good of the community.
438. Men for People
(X) All the streets were full of men.
(O) All the streets were full of people.
Use people and not men when the reference is to human beings in general.
439. Cost for Price
(X) What's the cost of this watch?
(O) What's the price of this watch?
Price is the amount of money paid by the customer.
Cost is the amount of money paid by the shopkeeper.
We can say How much does it cost?
Note: Value is the usefulness or importance of something.
The value of milk as a food, the value of education.
Face value is the amount printed on a piece of-paper-money or on a postage stamp.