Riddle Fun app for iPhone and iPad

The App collects 515 interesting riddles. They are sorted by the length of the riddle sentences as 6 categories for fast access.
In addition, the App provides the following features:

o My Favorites

- Single tap the question screen will show up a green "Add" button to add the riddle to "My Favorites" list.

- Single tap again will make the green button disappear.

o Tap the "Answer" button to show the answer of the riddle.

o Show each riddle on one page

- Use "Picker view" for fast page change.

- Use "up" and "down" buttons to change page one by one.