Here’s a nice one:
Q: What’s a smile?
A: A curved line that can set a lot of things straight.
Q: Do you know what is the longest word on Earth?
I: The word „smiles”, because there is a „mile” between the first and the last „s”.
You never thought that your lips can be that long when smiling, did you?
See? There are so many reasons to keep smiling. Have a smilicious day! :)