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
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
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