1. 1st: Jack of clubs 3rd: Ace of Spades 5th: 9 of Hearts 7th: 8 of hearts

2. (In any order:) Edward Peters, Robert Edwards and Peter Roberts

3. 11111

4. 15 days

5. 70 cars

6. a. T [One, Two, Three, Four, Five, Six, Seven, Eight, Nine, ___]

b. 10

7. (a) butler (b) Clark (c) bridge (d) squash

8. (c) nearly certain for any group of about 25 or more people [see http://betterexplained.com/articles/understanding-the-birthday-paradox/]

9. No: It can be divided by 3, 9, 7 and 49

10. 10 triangles