Each and Every
The usage of each and every as a quantifier is tricky because their meanings are similar but not identical. Although both words refer to something that is singular, each is referring to an individual as one, while the term every is referring to a group lumped together as one. For example, consider the following sentences:
Every artist is sensitive.
Each artist sees things differently.
Since each and every both refer to one, both terms are always conjugated in the singular form. For example, consider the following sentences:
Please give one sheet of paper to each student.
The piano should be practiced every day if one is going to improve.
Every is also used to indicate how often something happens. For example:
There is a pep rally before every football and basketball game.