Can't see my mini map, champion skills, and selected targerts....

The entire UI is turned off? I don't remember if this has a set keybinding or not.

1. Press "ESC" to see if the menu opens. ** -IF IT DOES, PROCEED WITH THESE STEPS-**
2. Navigate to the "Hotkeys" tab on the left.
3. Open the "Display" section.
4. Find "Show/Hide HUD" and see what key is bound.
5. Close the menu and press the bound key.

I would provide you with the bound key but I can changed my key bindings multiple times and do not wish to go through and reset all of them.

EDIT: As far as I can tell from the Wiki, the bound HUD key is Alt + http://leagueoflegends.wikia.com/wiki/Hotkeys_and_commands