What is Anonymous functions ?

Answer:

An anonymous function is an "inline" statement or expression that can be used wherever a delegate type is expected. We can use it to initialize a named delegate or pass it instead of a named delegate type as a method parameter
e.g.

In C# 2.0:

var output = doSomething(variable, delegate {

    // Anonymous function code

});

In C#4.0:

var output = doSomething(variable, () => {

    // Anonymous function code

});