Brain Teasers...
1. I have a deck of cards from which some are missing. If I deal them equally between nine people, I have two cards to spare. If I deal them equally between four people, I have only one card to spare. There are normally 52 cards in the deck. How many are missing?
2. At a mass doughnut eating competition Elizabeth eats an average of 22 doughnuts in her first 10 sittings. After a further 20 sittings her average increases to 34 doughnuts. What was her average for her last 20 sittings only.