You can ask questions like ‘When was the battle of Waterloo’, ‘Who were the Doors’, ‘Define democracy’, ‘Paris’, etc. The answer to your question will then be presented and spoken out. If available, a relevant image will be shown as well.
You navigate to previous questions and answers by ‘swiping’ the answer screen to the left and right.
Speak it - for Wiki uses the Wikipedia database directly and will therefore always be up to date with the latest facts and figures.