Proportion jokes
Your mum is so fat that when you walk around her, you get lost.
Your forehead is so big, I could land a jet plane on it.
They say people are 75% water.
But I'm 100% useless.
3.14% of sailors are...
π-rates.
Surveys say that 4 out of 5 people suffer from diarrhea. That means the 5th one likes it.
9 out of 10 Americans are stupid... I'm so glad I'm in the 1%.
Chuck Norris knows the last digit of pi.