Introduction:
When the term "lambda" is mentioned in a question, it typically refers to Lambda calculus or Lambda functions in the context of computer science and mathematics. Lambda calculus is a formal system in mathematical logic for expressing computation based on function abstraction and application using variable binding and substitution. Lambda functions, on the other hand, are anonymous functions that can be passed as parameters or returned from other functions.

Understanding Lambda Calculus:
- Lambda calculus is a mathematical system that uses a notation to describe functions and their evaluation.
- It consists of lambda expressions, which are defined as λx.e, where x is a variable and e is the body of the function.
- Lambda expressions can be applied to arguments to perform function evaluation.

Working of Lambda Functions:
- Lambda functions are also known as anonymous functions because they do not have a name.
- They are defined using the lambda keyword followed by parameters and an expression.
- Lambda functions can be used to create small, throwaway functions without the need to explicitly define a function using the def keyword.

Example of Lambda Function:
python
# Lambda function to calculate the square of a number
square = lambda x: x**2
print(square(5)) # Output: 25

Benefits of Lambda Functions:
- Concise: Lambda functions allow for the creation of quick, one-line functions without the need for a formal function definition.
- Readable: Lambda functions can make code more readable by eliminating the need for extra function definitions.
In conclusion, when the term "lambda" is mentioned in a question, it is important to understand whether it refers to Lambda calculus or Lambda functions in the context of computer science and mathematics. Both concepts have their own unique applications and benefits in the field of programming and computation.