Banana and pumpkin seed cake

They re not going to grow bananas any longer.
Really? Why not?
Because they re long enough already.

What do you do if you see a blue banana? Try to cheer it up.

What?s yellow and writes? A ball-point banana.

Teacher: What is Ba + Na2?
Pupil: Banana.

What is yellow and goes bzzzzzz? An electric banana.

What?s yellow and always points to the north? A magnetic banana.

Why did the man lose his job in a fruit packing firm? He kept throwing the bent bananas away.