Spring Spring - The Funniest Joke Spring. What are the best jokes you know that make others laugh in less that 20 seconds? Spring

Vovochka asks the teacher:
- Why is that: two halves of my pen screw and they don't have any children?
The teacher is furious and she runs to the director. He comes to the class and
Vovochka repeats his question.
- Haven'tcha noticed the spring in there?