It's the time in the watch. Such as 10 A.M.+ 4 hours = 2 P.M.
How many ways can you find to make the number 10, by adding or subtracting prime numbers? The same numbers but in a different order count as the same answer. (Prime numbers are only divisible by themselves and 1 so they are 2, 3, 5, 7, 11, 13, ...)
I herald the darkness which descends on all creatures; You will know my approach by moans and wracked features. I visit the hippo, the hyena and horse. But never go near snails and spiders of course. I would circle the globe, leaping one to the other. Should all the world's people ever clasp hands together. What am I?
