Windows Phone 8 powered phones come with the Microsoft Office apps and Excel being one of them. Let's learn how to use a simple but useful sum formula to add up the values.
The amazing timelapse is a beautiful composition of thousands carefully taken photos, shot in 36 cities and 21 countries, capturing the magnificent and prime examples of European architecture.
The United States with its 300 million people is in many ways still the most powerful country in the world. Find out if you are familiar with its facts and at the same time build up your general knowledge profile.
