PROBLEM OF THE WEEK

Riddle: How many sides does a circle have?

Riddle: A frog fell into a 12-foot-deep well. He could jump 3 feet, but every time he jumped 3 feet, he fell back 2 feet. How many times did he have to jump to get out of the well?

Riddle: A sphere has three, a circle has two, and a point has zero. What is it?

Riddle: The rungs of a 10-foot ladder attached to a ship are 1 foot apart. If the water is rising at the rate of one foot an hour, how long will it take until the water covers the ladder?

Riddle: One is to three as three is to five and five is to four and four is the magic number.  What is the pattern?

Riddle: How do you make the number 7 even without addition, subtraction, multiplication, or division?

Riddle: How can you write down eight eights so that they add up to one thousand?

Riddle: How can you measure nine minutes with have two hourglasses, one four minute and one seven minute?

Riddle: A man bumps into his mathematician friend on the street whom he hasn't seen in 5 years. The man asks the mathematician how old his children are. The mathematician, who always replies in riddles said, "I now have three children. The sum of their ages is equal to the number of windows on the building in front of you and the product of their ages equals 36." The friend then says "I need one more piece of information." The mathematician then replies "My youngest child has blue eyes." What are the ages of the mathematician's three children?

Riddle: A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?