Finding Consecutive Items in List using Linq

Question

Say I have the following array of integers:

int[] numbers = { 1, 6, 4, 10, 9, 12, 15, 17, 8, 3, 20, 21, 2, 23, 25, 27, 5, 67,33, 13, 8, 12, 41, 5 };
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Answer 1

int[] numbers = { 1, 6, 4, 10, 9, 12, 15, 17, 8, 3, 20, 21, 2, 23, 25, 27, 5, 67, 33, 13, 8, 12, 41, 5 };

var numbersQuery = numbers.Select((x, index) => new { Index = index, Value = x});

var query = from n in numbersQuery
            from n2 in numbersQuery.Where(x => n.Index == x.Index - 1).DefaultIfEmpty()
            from n3 in numbersQuery.Where(x => n.Index == x.Index - 2).DefaultIfEmpty()
            where n.Value > 10
            where n2 != null && n2.Value > 10
            where n3 != null && n3.Value > 10
            select new
            {
              Value1 = n.Value,
              Value2 = n2.Value,
              Value3 = n3.Value
            };

In order to specify which group, you can call the Skip method

query.Skip(1)