Ripley's Believe It or Not by Ripley’s Believe It or Not! for December 27, 2014
Transcript:
In South Korea, the 4th floor is often labeled F because the number 4 is considered unlucky. The Japanese call their green traffic lights blue, as historically they do not distinguish between the two colors. Frederick the Great of Prussia (1712-1786) took his coffee with champagne instead of water, and added mustard!
This is also true (no 4th floor) in China. The number 4 (四) and the word for death (死) are both pronounced “si”. Never give a gift in China in multiples of 4 items!