These seem to fit the bill - from my 12 year old granddaughter:
What's the best thing about Switzerland? I don't know, but I know it's a big plus.
Why don't eggs tell jokes? They'd crack each other up.
What did the shark say when he ate the clownfish? OMG, this tastes funny
What do you call a fake noodle? An impasto.
Why did the golfer bring two pairs of pants? In case he got a hole in one.
What do you call a pig that does karate? A pork chop.