Personally, this is one of my favorite jokes.
Q: What is the difference between Pongal and Puri?
A: We get holiday for Pongal but not for Puri!!! :)
But when I was asked this riddle, I gave a new answer: 'We can go to Puri but not to Pongal!' :)
For readers who are new to India and Indian culture: Pongal is the name of festival in India. Puri is name of a food preparation and also it is the place where the Jagannath Temple is, in India.