How to use LINQ query operators ?

Question

LINQ standard query operator defined by the Enumerable class:

• Filtering Operators

        Where

        OfType<TResult>

• Projection Operators

        Select

        SelectMany

• Sorting Operators

        OrderBy

        ThenBy

        OrderByDescending

        ThenByDescending

        Reverse

• Join Operators

        Join

        GroupJoin

• Grouping Operators

        GroupBy

        ToLookup

• Quantifier Operators

        Any

        All

        Contains

• Partitioning Operators

        Take

        Skip

        TakeWhile

        SkipWhile

• Set Operators

        Distinct

        Union

        Intersect

        Except

        Zip

• Element Operators

        First

        FirstOrDefault

        Last

        LastOrDefault

        ElementAt

        ElementAtOrDefault

        Single

        SingleOrDefault

• Aggregate Operators

        Count

        Sum

        Min

        Max

        Average

        Aggregate

• Conversion Operators

        ToArray

        AsEnumerable

        ToList

        ToDictionary

        Cast<TResult>

• Generation Operators

        Empty

        Range

        Repeat

Hey Programmers/developers/Engineers,

Write queries using these operators and share concepts of LINQ.