Simple problems resolved

Good morning!

I added the files with the solutions.
They were created in Visual Studio 2010.

Here is a print screen of the VS Solution if you want to reproduce it:
![vs_solution](https://cloud.githubusercontent.com/assets/8064846/3478786/0748603c-0344-11e4-9cd8-14a79bd121ac.png)

The UnitTests project needs a reference to the SimpleProblems project.

Thank you for your time.
With ternary operator it would be:
return val % 2 == 0 ? true : false;

And again when I though it can't be improved you propose an even simpler solution.

return val % 2 returns eight 1 or 0.

But I have to check the returned value. 
if (array[i].IsEven() == 0)

Or convert the result of val % 2 to bool.

return !Convert.ToBoolean(val % 2);