Other ways to say “What's happening?”

Question

Can you suggest similar expressions to "what's happening"?

The first that came up to me are:

• What's going on?
• What's up?

I am learning English, I am in a small country in Europe. I am looking for other ways to say it :

• Uncommon ways
• Funny and/or playing with words or double meanings
• Used in the past
• Very new, used in streets or only for very young people
• Common in a zone. For instance, only used in Bonton area
• ...

Answer 1

• What gives?
• Penny for your thoughts?
• What's the craic? (Ireland)

It's interesting with respect to @Reagan's answer that "craic" is also pronounced and sometimes written "crack".

Answer 2

I’ve started using "What’s cracka lacking"? I think I saw it on the internet and thought it was funny so now I use it. I’m pretty sure only high schoolers and other people around that age use this saying.