I'm a very silly fish

I was a bit bored tonight, swimming around in my little bowl, so I thought up these jokes:

What is Japan's favourite cheese?
Gorgonzilla!

How do you create a hairless fruit in Cuba?
Shave a guava!

Why did the court musicians get upset once a month?
Because of their minstrel cycle!

What was King Midas' favourite starter?
24-carat soup!

How do you tell if a fisherman's had enough sleep?
Check if he's caught 40 winkles!

What's got a chocolate coating and an electrifying centre?
Malt-tasers!

Why did the carpenter remove 3?
Because he wanted 2 by 4!