Monday, 31 August 2009

DAY 20
How much does a brick weigh if it weighs 5 pounds plus half its own weight?

Answer:

10 pounds

Day 21
A man is looking at a picture of a man. When asked who is pictured, the man replies: "Brothers and sisters have I none, but that man's father is my father's son." What relation is the man in the picture to the man looking at the picture?

Answer:

His son.....It's important that the man looking at the picture have no brothers, otherwise he might be looking at a picture of his nephew. That he has no sisters is a red herring.

DAY 22
A perfect number is one whose factors (excluding the number itself) add up to the number. 6 is a perfect number-----1+2+3 = 6. What is the next perfect number? (Hint: It's less than 30.)

Answer:

28..........1+2+4+7+14 = 28

No comments:

Post a Comment