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.
I struggled at first until I remembered bit operations.

Basically to check if a number is even or odd you need to check the first bit.
The &(and) operator returns 1 only if both values are 1.

(val & 1) returns either 1(for odd) or 0(for even);

Two examples:
(even number example)               
0 0 0 0   0 1 0 0  (4)
	   &
0 0 0 0   0 0 0 1  (1)
-------------------------
0 0 0 0   0 0 0 0  (0)                    

(odd number example)
0 0 0 0   0 1 0 1  (5)
           &
0 0 0 0   0 0 0 1  (1)
---------------------------
0 0 0 0   0 0 0 1  (1)

So simple yet so effective.
No more dares from my part!