The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
A cow produces around 200,000 glasses of milk in her lifetime.
373
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34