The well of a church-Riddle
An old priest fell on the bottom of the well of a church. The well is 20 inches deep. At daytime, the old priest climbs 5-inches but when at dark he slipped back 4 inches. In how many days priest will come out of the well?
16-days In 15-days, he will climb 15-inch and when he climbs 5 inch more, he will be out of the well