Why So Serious?

The Joker told us all that his father cut his cheeks after he took the same act committed on his mother too seriously.

The Joker told us that his wife had her cheeks cut out and he did the same with a razor to make her feel better.

Is there truth behind these statements? Or did he lie? Because, you know, the Joker is known to lie...

What is the truth?

Where did he get the scars?

And

Why So Serious?