NOT KNOWN FACTS ABOUT RIDDLE

c) It’s as mild as being a feather, but the strongest human being can’t hold it for in excess of 5 minutes. What's it?e) You planted sunflower seeds within your back backyard. Every single day, the amount of flowers doubles. If it requires 52 days to the flowers to fill the yard, what number of days would it take for them to fill 50 percent the