22.
What does the 'default' keyword do in a 'switch' statement in C#?

23.
In C#, what is the syntax for a 'for-each' loop?

26.
What is the purpose of the 'continue' statement in a loop in C#?

30.
What will be the output of the following C# code?
static void Main(string[] args)
{
    int x = 0;
    do
    {
        x++;
        if (x == 5)
        {
            x++;
            continue;
            break;
        }
        Console.WriteLine(x + " ");
    }
}while (x < 10);