what's with the burgers?

Ok i realised my post have been quite depressed and snappy...
so this shall be a light one..

1. What is the happiest burger?
Berge-mbira!

2. What is the burger that moves on it's own?
Berger-ak

then the final one...

What is the smellliest burger?
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Berkentut lah!

(don't tell me your fart is sweet-smelling)
kthxbai